{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Microsoft Excel 2016 (\u00e9dition 64 bits) versions ant\u00e9rieures \u00e0 16.0.5539.1002",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Excel 2016 (\u00e9dition 32 bits) versions ant\u00e9rieures \u00e0 16.0.5539.1002",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Office LTSC 2024 pour \u00e9ditions 64 bits",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Outlook 2016 (\u00e9dition 64 bits) versions ant\u00e9rieures \u00e0 16.0.5539.1002",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Office LTSC 2021 pour \u00e9ditions 32 bits",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Office 2019 pour \u00e9ditions 32 bits",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft 365 Apps pour Enterprise pour syst\u00e8mes 32 bits",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Office 2019 pour \u00e9ditions 64 bits",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Office LTSC 2024 pour \u00e9ditions 32 bits",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Outlook 2016 (\u00e9dition 32 bits) versions ant\u00e9rieures \u00e0 16.0.5539.1002",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Word 2016 (\u00e9dition 32 bits) versions ant\u00e9rieures \u00e0 16.0.5539.1002",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Word 2016 (\u00e9dition 64 bits) versions ant\u00e9rieures \u00e0 16.0.5539.1002",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Office LTSC 2021 pour \u00e9ditions 64 bits",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Office LTSC pour Mac 2021 versions ant\u00e9rieures \u00e0 16.106.26020821",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft 365 Apps pour Enterprise pour syst\u00e8mes 64 bits",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Office LTSC pour Mac 2024 versions ant\u00e9rieures \u00e0 16.106.26020821",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Office Online Server versions ant\u00e9rieures \u00e0 16.0.10417.20097",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": null,
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [
    {
      "name": "CVE-2026-21514",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-21514"
    },
    {
      "name": "CVE-2026-21258",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-21258"
    },
    {
      "name": "CVE-2026-21260",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-21260"
    },
    {
      "name": "CVE-2026-21259",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-21259"
    },
    {
      "name": "CVE-2026-21511",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-21511"
    },
    {
      "name": "CVE-2026-21261",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-21261"
    }
  ],
  "initial_release_date": "2026-02-11T00:00:00",
  "last_revision_date": "2026-02-11T00:00:00",
  "links": [],
  "reference": "CERTFR-2026-AVI-0149",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-02-11T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Contournement de la politique de s\u00e9curit\u00e9"
    },
    {
      "description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
    },
    {
      "description": "\u00c9l\u00e9vation de privil\u00e8ges"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Microsoft Office. Elles permettent \u00e0 un attaquant de provoquer une \u00e9l\u00e9vation de privil\u00e8ges, une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es et un contournement de la politique de s\u00e9curit\u00e9.\n\nMicrosoft indique que la vuln\u00e9rabilit\u00e9 CVE-2026-21514 est activement exploit\u00e9e.",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans Microsoft Office",
  "vendor_advisories": [
    {
      "published_at": "2026-02-10",
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-21259",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21259"
    },
    {
      "published_at": "2026-02-10",
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-21261",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21261"
    },
    {
      "published_at": "2026-02-10",
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-21258",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21258"
    },
    {
      "published_at": "2026-02-10",
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-21514",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21514"
    },
    {
      "published_at": "2026-02-10",
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-21260",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21260"
    },
    {
      "published_at": "2026-02-10",
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-21511",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21511"
    }
  ]
}

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Microsoft Excel 2016 (\u00e9dition 64 bits) versions ant\u00e9rieures \u00e0 16.0.5539.1002",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Excel 2016 (\u00e9dition 32 bits) versions ant\u00e9rieures \u00e0 16.0.5539.1002",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Office LTSC 2024 pour \u00e9ditions 64 bits",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Outlook 2016 (\u00e9dition 64 bits) versions ant\u00e9rieures \u00e0 16.0.5539.1002",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Office LTSC 2021 pour \u00e9ditions 32 bits",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Office 2019 pour \u00e9ditions 32 bits",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft 365 Apps pour Enterprise pour syst\u00e8mes 32 bits",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Office 2019 pour \u00e9ditions 64 bits",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Office LTSC 2024 pour \u00e9ditions 32 bits",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Outlook 2016 (\u00e9dition 32 bits) versions ant\u00e9rieures \u00e0 16.0.5539.1002",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Word 2016 (\u00e9dition 32 bits) versions ant\u00e9rieures \u00e0 16.0.5539.1002",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Word 2016 (\u00e9dition 64 bits) versions ant\u00e9rieures \u00e0 16.0.5539.1002",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Office LTSC 2021 pour \u00e9ditions 64 bits",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Office LTSC pour Mac 2021 versions ant\u00e9rieures \u00e0 16.106.26020821",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft 365 Apps pour Enterprise pour syst\u00e8mes 64 bits",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Microsoft Office LTSC pour Mac 2024 versions ant\u00e9rieures \u00e0 16.106.26020821",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    },
    {
      "description": "Office Online Server versions ant\u00e9rieures \u00e0 16.0.10417.20097",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Microsoft",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": null,
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [
    {
      "name": "CVE-2026-21514",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-21514"
    },
    {
      "name": "CVE-2026-21258",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-21258"
    },
    {
      "name": "CVE-2026-21260",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-21260"
    },
    {
      "name": "CVE-2026-21259",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-21259"
    },
    {
      "name": "CVE-2026-21511",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-21511"
    },
    {
      "name": "CVE-2026-21261",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-21261"
    }
  ],
  "initial_release_date": "2026-02-11T00:00:00",
  "last_revision_date": "2026-02-11T00:00:00",
  "links": [],
  "reference": "CERTFR-2026-AVI-0149",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-02-11T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Contournement de la politique de s\u00e9curit\u00e9"
    },
    {
      "description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
    },
    {
      "description": "\u00c9l\u00e9vation de privil\u00e8ges"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Microsoft Office. Elles permettent \u00e0 un attaquant de provoquer une \u00e9l\u00e9vation de privil\u00e8ges, une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es et un contournement de la politique de s\u00e9curit\u00e9.\n\nMicrosoft indique que la vuln\u00e9rabilit\u00e9 CVE-2026-21514 est activement exploit\u00e9e.",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans Microsoft Office",
  "vendor_advisories": [
    {
      "published_at": "2026-02-10",
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-21259",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21259"
    },
    {
      "published_at": "2026-02-10",
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-21261",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21261"
    },
    {
      "published_at": "2026-02-10",
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-21258",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21258"
    },
    {
      "published_at": "2026-02-10",
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-21514",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21514"
    },
    {
      "published_at": "2026-02-10",
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-21260",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21260"
    },
    {
      "published_at": "2026-02-10",
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft Office CVE-2026-21511",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21511"
    }
  ]
}

{
  "CVSS 2.0": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
  "CVSS 3.0": "AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
  "CVSS 4.0": null,
  "remediation_\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": null,
  "remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": null,
  "\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "Microsoft Corp",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "- (Microsoft 365 Apps for Enterprise), - (Microsoft Office LTSC 2021), - (Microsoft Office LTSC 2024), \u0434\u043e 16.106.26020821 (Microsoft Office LTSC 2024), \u0434\u043e 16.106.26020821 (Microsoft Office LTSC 2021)",
  "\u0412\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u043c\u0435\u0440\u044b \u043f\u043e \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e": "\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439:\nhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21514",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "10.02.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "11.02.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "11.02.2026",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2026-01699",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0434\u0440\u0443\u0433\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "CVE-2026-21514",
  "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430",
  "\u041a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u0434\u0430",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "Microsoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office LTSC 2024",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u041e\u0421 \u0438 \u0442\u0438\u043f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b": null,
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u0430\u043a\u0435\u0442\u0430 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c Microsoft Office, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u0430\u044f \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u043d\u0435\u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0445 \u0432\u0445\u043e\u0434\u043d\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u043f\u0440\u0438 \u043f\u0440\u0438\u043d\u044f\u0442\u0438\u0438 \u0440\u0435\u0448\u0435\u043d\u0438\u0439 \u043f\u043e \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u043e\u0431\u043e\u0439\u0442\u0438 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0435 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u044f \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0421\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u0435\u0442",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u0417\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044c \u043e\u0442 \u043d\u0435\u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0445 \u0432\u0445\u043e\u0434\u043d\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u043f\u0440\u0438 \u043f\u0440\u0438\u043d\u044f\u0442\u0438\u0438 \u0440\u0435\u0448\u0435\u043d\u0438\u044f \u043f\u043e \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (CWE-807)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u0430\u043a\u0435\u0442\u0430 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c Microsoft Office \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u043d\u0435\u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0445 \u0432\u0445\u043e\u0434\u043d\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u043f\u0440\u0438 \u043f\u0440\u0438\u043d\u044f\u0442\u0438\u0438 \u0440\u0435\u0448\u0435\u043d\u0438\u0439 \u043f\u043e \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u043e\u0431\u043e\u0439\u0442\u0438 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0435 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u044f \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u041f\u043e\u0434\u043c\u0435\u043d\u0430 \u043f\u0440\u0438 \u0432\u0437\u0430\u0438\u043c\u043e\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0438",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21514\nhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-21514\n\nhttps://www.cisa.gov/sites/default/files/csv/known_exploited_vulnerabilities.csv",
  "\u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u043c",
  "\u0422\u0438\u043f \u041f\u041e": "\u041f\u0440\u0438\u043a\u043b\u0430\u0434\u043d\u043e\u0435 \u041f\u041e \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-807",
  "\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 7,2)\n\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 3.1 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 7,8)"
}

{
  "affected": [
    {
      "affectedData": [
        {
          "platforms": [
            "32-bit Systems",
            "x64-based Systems"
          ],
          "product": "Microsoft 365 Apps for Enterprise",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "https://aka.ms/OfficeSecurityReleases",
              "status": "affected",
              "version": "16.0.1",
              "versionType": "custom"
            }
          ]
        },
        {
          "platforms": [
            "32-bit Systems",
            "x64-based Systems"
          ],
          "product": "Microsoft Office LTSC 2021",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "https://aka.ms/OfficeSecurityReleases",
              "status": "affected",
              "version": "16.0.1",
              "versionType": "custom"
            }
          ]
        },
        {
          "platforms": [
            "32-bit Systems",
            "x64-based Systems"
          ],
          "product": "Microsoft Office LTSC 2024",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "https://aka.ms/OfficeSecurityReleases",
              "status": "affected",
              "version": "16.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "Microsoft Office LTSC for Mac 2021",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "16.106.26020821",
              "status": "affected",
              "version": "16.0.1",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "Microsoft Office LTSC for Mac 2024",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "16.106.26020821",
              "status": "affected",
              "version": "16.0.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "secure@microsoft.com"
    }
  ],
  "cisaActionDue": "2026-03-03",
  "cisaExploitAdd": "2026-02-10",
  "cisaRequiredAction": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
  "cisaVulnerabilityName": "Microsoft Office Word Reliance on Untrusted Inputs in a Security Decision Vulnerability",
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:*",
              "matchCriteriaId": "3259EBFE-AE2D-48B8-BE9A-E22BBDB31378",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:*",
              "matchCriteriaId": "CD25F492-9272-4836-832C-8439EBE64CCF",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:-:x64:*",
              "matchCriteriaId": "851BAC4E-9965-4F40-9A6C-B73D9004F4C1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:-:x86:*",
              "matchCriteriaId": "23B2FA23-76F4-4D83-A718-B8D04D7EA37B",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:macos:*:*",
              "matchCriteriaId": "BF0E8112-5B6F-4E55-8E40-38ADCF6FC654",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:-:x64:*",
              "matchCriteriaId": "D31E509A-0B2E-4B41-88C4-0099E800AFE6",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:-:x86:*",
              "matchCriteriaId": "017A7041-BEF1-4E4E-AC8A-EFC6AFEB01FE",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:macos:*:*",
              "matchCriteriaId": "EF3E56B5-E6A6-4061-9380-D421E52B9199",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Reliance on untrusted inputs in a security decision in Microsoft Office Word allows an unauthorized attacker to bypass a security feature locally."
    },
    {
      "lang": "es",
      "value": "Dependencia de entradas no confiables en una decisi\u00f3n de seguridad en Microsoft Office Word permite a un atacante no autorizado eludir una caracter\u00edstica de seguridad localmente."
    }
  ],
  "id": "CVE-2026-21514",
  "lastModified": "2026-06-17T10:18:45.733",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "secure@microsoft.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-21514",
          "options": [
            {
              "exploitation": "active"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-02-11T04:56:01.104546Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-02-10T18:16:33.803",
  "references": [
    {
      "source": "secure@microsoft.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21514"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "US Government Resource"
      ],
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-21514"
    }
  ],
  "sourceIdentifier": "secure@microsoft.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-807"
        }
      ],
      "source": "secure@microsoft.com",
      "type": "Secondary"
    }
  ]
}

{
  "affected": [],
  "aliases": [
    "CVE-2026-21514"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-807"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-10T18:16:33Z",
    "severity": "HIGH"
  },
  "details": "Reliance on untrusted inputs in a security decision in Microsoft Office Word allows an unauthorized attacker to bypass a security feature locally.",
  "id": "GHSA-cjj3-m869-748g",
  "modified": "2026-02-10T21:31:29Z",
  "published": "2026-02-10T18:30:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-21514"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21514"
    },
    {
      "type": "WEB",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-21514"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "Anonymous"
        ]
      },
      {
        "names": [
          "Microsoft Threat Intelligence Center (MSTIC), Microsoft Security Response Center (MSRC), and Office Product Group Security Team"
        ]
      },
      {
        "names": [
          "Google Threat Intelligence Group"
        ]
      },
      {
        "names": [
          "Anonymous"
        ]
      }
    ],
    "aggregate_severity": {
      "namespace": "https://www.microsoft.com/en-us/msrc/security-update-severity-rating-system",
      "text": "Important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Public",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      },
      {
        "category": "general",
        "text": "Required. The vulnerability documented by this CVE requires customer action to resolve.",
        "title": "Customer Action"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "CVE-2026-21514 Microsoft Word Security Feature Bypass Vulnerability - HTML",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21514"
      },
      {
        "category": "self",
        "summary": "CVE-2026-21514 Microsoft Word Security Feature Bypass Vulnerability - CSAF",
        "url": "https://msrc.microsoft.com/csaf/advisories/2026/msrc_cve-2026-21514.json"
      },
      {
        "category": "external",
        "summary": "Microsoft Exploitability Index",
        "url": "https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "Microsoft Word Security Feature Bypass Vulnerability",
    "tracking": {
      "current_release_date": "2026-02-10T08:00:00.000Z",
      "generator": {
        "date": "2026-02-17T19:25:44.030Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2026-21514",
      "initial_release_date": "2026-02-10T08:00:00.000Z",
      "revision_history": [
        {
          "date": "2026-02-10T08:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003chttps://aka.ms/OfficeSecurityReleases",
            "product": {
              "name": "Microsoft 365 Apps for Enterprise for 32-bit Systems \u003chttps://aka.ms/OfficeSecurityReleases",
              "product_id": "8"
            }
          },
          {
            "category": "product_version",
            "name": "https://aka.ms/OfficeSecurityReleases",
            "product": {
              "name": "Microsoft 365 Apps for Enterprise for 32-bit Systems https://aka.ms/OfficeSecurityReleases",
              "product_id": "11762"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft 365 Apps for Enterprise for 32-bit Systems"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003chttps://aka.ms/OfficeSecurityReleases",
            "product": {
              "name": "Microsoft 365 Apps for Enterprise for 64-bit Systems \u003chttps://aka.ms/OfficeSecurityReleases",
              "product_id": "7"
            }
          },
          {
            "category": "product_version",
            "name": "https://aka.ms/OfficeSecurityReleases",
            "product": {
              "name": "Microsoft 365 Apps for Enterprise for 64-bit Systems https://aka.ms/OfficeSecurityReleases",
              "product_id": "11763"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft 365 Apps for Enterprise for 64-bit Systems"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c16.106.26020821",
            "product": {
              "name": "Microsoft Office LTSC for Mac 2021 \u003c16.106.26020821",
              "product_id": "6"
            }
          },
          {
            "category": "product_version",
            "name": "16.106.26020821",
            "product": {
              "name": "Microsoft Office LTSC for Mac 2021 16.106.26020821",
              "product_id": "11951"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Office LTSC for Mac 2021"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003chttps://aka.ms/OfficeSecurityReleases",
            "product": {
              "name": "Microsoft Office LTSC 2021 for 64-bit editions \u003chttps://aka.ms/OfficeSecurityReleases",
              "product_id": "5"
            }
          },
          {
            "category": "product_version",
            "name": "https://aka.ms/OfficeSecurityReleases",
            "product": {
              "name": "Microsoft Office LTSC 2021 for 64-bit editions https://aka.ms/OfficeSecurityReleases",
              "product_id": "11952"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Office LTSC 2021 for 64-bit editions"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003chttps://aka.ms/OfficeSecurityReleases",
            "product": {
              "name": "Microsoft Office LTSC 2021 for 32-bit editions \u003chttps://aka.ms/OfficeSecurityReleases",
              "product_id": "4"
            }
          },
          {
            "category": "product_version",
            "name": "https://aka.ms/OfficeSecurityReleases",
            "product": {
              "name": "Microsoft Office LTSC 2021 for 32-bit editions https://aka.ms/OfficeSecurityReleases",
              "product_id": "11953"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Office LTSC 2021 for 32-bit editions"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003chttps://aka.ms/OfficeSecurityReleases",
            "product": {
              "name": "Microsoft Office LTSC 2024 for 32-bit editions \u003chttps://aka.ms/OfficeSecurityReleases",
              "product_id": "3"
            }
          },
          {
            "category": "product_version",
            "name": "https://aka.ms/OfficeSecurityReleases",
            "product": {
              "name": "Microsoft Office LTSC 2024 for 32-bit editions https://aka.ms/OfficeSecurityReleases",
              "product_id": "12420"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Office LTSC 2024 for 32-bit editions"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003chttps://aka.ms/OfficeSecurityReleases",
            "product": {
              "name": "Microsoft Office LTSC 2024 for 64-bit editions \u003chttps://aka.ms/OfficeSecurityReleases",
              "product_id": "2"
            }
          },
          {
            "category": "product_version",
            "name": "https://aka.ms/OfficeSecurityReleases",
            "product": {
              "name": "Microsoft Office LTSC 2024 for 64-bit editions https://aka.ms/OfficeSecurityReleases",
              "product_id": "12421"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Office LTSC 2024 for 64-bit editions"
      },
      {
        "branches": [
          {
            "category": "product_version_range",
            "name": "\u003c16.106.26020821",
            "product": {
              "name": "Microsoft Office LTSC for Mac 2024 \u003c16.106.26020821",
              "product_id": "1"
            }
          },
          {
            "category": "product_version",
            "name": "16.106.26020821",
            "product": {
              "name": "Microsoft Office LTSC for Mac 2024 16.106.26020821",
              "product_id": "12440"
            }
          }
        ],
        "category": "product_name",
        "name": "Microsoft Office LTSC for Mac 2024"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-21514",
      "cwe": {
        "id": "CWE-807",
        "name": "Reliance on Untrusted Inputs in a Security Decision"
      },
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        },
        {
          "category": "faq",
          "text": "An attacker must send a user a malicious Office file and convince them to open it.",
          "title": "According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?"
        },
        {
          "category": "faq",
          "text": "This update addresses a vulnerability that bypasses OLE mitigations in Microsoft 365 and Microsoft Office which protect users from vulnerable COM/OLE controls.",
          "title": "What kind of security feature could be bypassed by successfully exploiting this vulnerability?"
        },
        {
          "category": "faq",
          "text": "No, the Preview Pane is not an attack vector.",
          "title": "Is the Preview Pane an attack vector for this vulnerability?"
        }
      ],
      "product_status": {
        "fixed": [
          "11762",
          "11763",
          "11951",
          "11952",
          "11953",
          "12420",
          "12421",
          "12440"
        ],
        "known_affected": [
          "1",
          "2",
          "3",
          "4",
          "5",
          "6",
          "7",
          "8"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-21514 Microsoft Word Security Feature Bypass Vulnerability - HTML",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21514"
        },
        {
          "category": "self",
          "summary": "CVE-2026-21514 Microsoft Word Security Feature Bypass Vulnerability - CSAF",
          "url": "https://msrc.microsoft.com/csaf/advisories/2026/msrc_cve-2026-21514.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-02-10T08:00:00.000Z",
          "details": "https://aka.ms/OfficeSecurityReleases:Security Update:https://docs.microsoft.com/en-us/officeupdates/office365-proplus-security-updates",
          "product_ids": [
            "8",
            "7",
            "5",
            "4",
            "3",
            "2"
          ],
          "url": "https://docs.microsoft.com/en-us/officeupdates/office365-proplus-security-updates"
        },
        {
          "category": "vendor_fix",
          "date": "2026-02-10T08:00:00.000Z",
          "details": "16.106.26020821:Security Update:https://go.microsoft.com/fwlink/p/?linkid=831049",
          "product_ids": [
            "6",
            "1"
          ],
          "url": "https://go.microsoft.com/fwlink/p/?linkid=831049"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "exploitCodeMaturity": "FUNCTIONAL",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 7.2,
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Security Feature Bypass"
        },
        {
          "category": "exploit_status",
          "details": "Publicly Disclosed:Yes;Exploited:Yes;Latest Software Release:Exploitation Detected"
        }
      ],
      "title": "Microsoft Word Security Feature Bypass Vulnerability"
    }
  ]
}

{
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE"
      }
    },
    "lang": "nl",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this page to enhance access to its information and security advisories. The use of this security advisory is subject to the following terms and conditions:\n\n    NCSC-NL makes every reasonable effort to ensure that the content of this page is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or continuous keeping up-to-date. The information contained in this security advisory is intended solely for the purpose of providing general information to professional users. No rights can be derived from the information provided therein.\n\n    NCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of this security advisory. This includes damage resulting from the inaccuracy of incompleteness of the information contained in the advisory.\n    This security advisory is subject to Dutch law. All disputes related to or arising from the use of this advisory will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings."
      },
      {
        "category": "description",
        "text": "Microsoft heeft kwetsbaarheden verholpen in Office componenten.",
        "title": "Feiten"
      },
      {
        "category": "description",
        "text": "Een kwaadwillende kan de kwetsbaarheden misbruiken om beveiligingsmaatregelen te omzeilen, zoch voor te doen als andere gebruiker en zich zo verhoogde rechten toe te kennen en toegang te krijgen tot gevoelige gegevens.\n\nVoor succesvol misbruik moet de kwaadwillende het slachtoffer misleiden en malafide bestand te openen of link te volgen.\n\nVan de kwetsbaarheid met kenmerk CVE-2026-21511 meldt Microsoft informatie te hebben dat deze besproken wordt op fora. De kwetsbaarheid stelt een kwaadwillende in staat om middels een malafide bericht een NTLM-authenticatie te initi\u00ebren naar een server onder controle van de kwaadwillende, waarmee de kwaadwillende authenticatiegegevens kan bemachtigen. Er is (nog) geen publieke Proof-of-Concept-code beschikbaar en misbruik vereist een speciaal ingerichte server. Grootschalig misbruik is hiermee niet waarschijnlijk.\n\n```\nMicrosoft Office Word: \n|----------------|------|-------------------------------------|\n| CVE-ID         | CVSS | Impact                              |\n|----------------|------|-------------------------------------|\n| CVE-2026-21514 | 7.80 | Omzeilen van beveiligingsmaatregel  | \n|----------------|------|-------------------------------------|\n\nMicrosoft Office Excel: \n|----------------|------|-------------------------------------|\n| CVE-ID         | CVSS | Impact                              |\n|----------------|------|-------------------------------------|\n| CVE-2026-21259 | 7.30 | Verkrijgen van verhoogde rechten    | \n| CVE-2026-21258 | 5.50 | Toegang tot gevoelige gegevens      | \n| CVE-2026-21261 | 5.50 | Toegang tot gevoelige gegevens      | \n|----------------|------|-------------------------------------|\n\nMicrosoft Office Outlook: \n|----------------|------|-------------------------------------|\n| CVE-ID         | CVSS | Impact                              |\n|----------------|------|-------------------------------------|\n| CVE-2026-21260 | 7.50 | Voordoen als andere gebruiker       | \n| CVE-2026-21511 | 7.50 | Voordoen als andere gebruiker       | \n|----------------|------|-------------------------------------|\n```",
        "title": "Interpretaties"
      },
      {
        "category": "description",
        "text": "Microsoft heeft updates beschikbaar gesteld waarmee de beschreven kwetsbaarheden worden verholpen. We raden u aan om deze updates te installeren. Meer informatie over de kwetsbaarheden, de installatie van de updates en eventuele work-arounds vindt u op:\n\nhttps://portal.msrc.microsoft.com/en-us/security-guidance",
        "title": "Oplossingen"
      },
      {
        "category": "general",
        "text": "medium",
        "title": "Kans"
      },
      {
        "category": "general",
        "text": "high",
        "title": "Schade"
      },
      {
        "category": "general",
        "text": "Improper Input Validation",
        "title": "CWE-20"
      },
      {
        "category": "general",
        "text": "Heap-based Buffer Overflow",
        "title": "CWE-122"
      },
      {
        "category": "general",
        "text": "Out-of-bounds Read",
        "title": "CWE-125"
      },
      {
        "category": "general",
        "text": "Exposure of Sensitive Information to an Unauthorized Actor",
        "title": "CWE-200"
      },
      {
        "category": "general",
        "text": "Deserialization of Untrusted Data",
        "title": "CWE-502"
      },
      {
        "category": "general",
        "text": "Reliance on Untrusted Inputs in a Security Decision",
        "title": "CWE-807"
      }
    ],
    "publisher": {
      "category": "coordinator",
      "contact_details": "cert@ncsc.nl",
      "name": "Nationaal Cyber Security Centrum",
      "namespace": "https://www.ncsc.nl/"
    },
    "title": "Kwetsbaarheden verholpen in Microsoft Office",
    "tracking": {
      "current_release_date": "2026-02-10T19:11:42.825147Z",
      "generator": {
        "date": "2025-08-04T16:30:00Z",
        "engine": {
          "name": "V.A.",
          "version": "1.3"
        }
      },
      "id": "NCSC-2026-0058",
      "initial_release_date": "2026-02-10T19:11:42.825147Z",
      "revision_history": [
        {
          "date": "2026-02-10T19:11:42.825147Z",
          "number": "1.0.0",
          "summary": "Initiele versie"
        }
      ],
      "status": "final",
      "version": "1.0.0"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-1"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft 365 Apps for Enterprise"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-2"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft 365 Apps for Enterprise for 32-bit Systems"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-3"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft 365 Apps for Enterprise for 64-bit Systems"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-4"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Excel 2016"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-5"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Excel 2016 (32-bit edition)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-6"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Excel 2016 (64-bit edition)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-7"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Office 2019"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-8"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Office 2019 for 32-bit editions"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-9"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Office 2019 for 64-bit editions"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-10"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Office LTSC 2021"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-11"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Office LTSC 2021 for 32-bit editions"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-12"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Office LTSC 2021 for 64-bit editions"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-13"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Office LTSC 2024"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-14"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Office LTSC 2024 for 32-bit editions"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-15"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Office LTSC 2024 for 64-bit editions"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-16"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Office LTSC for Mac 2021"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-17"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Office LTSC for Mac 2024"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-18"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Outlook 2016"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-19"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Outlook 2016 (32-bit edition)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-20"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Outlook 2016 (64-bit edition)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-21"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft SharePoint Enterprise Server 2016"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-22"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft SharePoint Server 2019"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-23"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft SharePoint Server Subscription Edition"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-24"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Word 2016"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "vers:unknown/*",
                "product": {
                  "name": "vers:unknown/*",
                  "product_id": "CSAFPID-25"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Word 2016 (32-bit edition)"
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-21259",
      "cwe": {
        "id": "CWE-122",
        "name": "Heap-based Buffer Overflow"
      },
      "notes": [
        {
          "category": "other",
          "text": "Heap-based Buffer Overflow",
          "title": "CWE-122"
        },
        {
          "category": "description",
          "text": "A heap-based buffer overflow vulnerability in Microsoft Office Excel allows unauthorized attackers to locally elevate their privileges.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3",
          "CSAFPID-4",
          "CSAFPID-5",
          "CSAFPID-6",
          "CSAFPID-7",
          "CSAFPID-8",
          "CSAFPID-9",
          "CSAFPID-10",
          "CSAFPID-11",
          "CSAFPID-12",
          "CSAFPID-13",
          "CSAFPID-14",
          "CSAFPID-15",
          "CSAFPID-16",
          "CSAFPID-17",
          "CSAFPID-18",
          "CSAFPID-19",
          "CSAFPID-20",
          "CSAFPID-21",
          "CSAFPID-22",
          "CSAFPID-23",
          "CSAFPID-24",
          "CSAFPID-25"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-21259 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-21259.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3",
            "CSAFPID-4",
            "CSAFPID-5",
            "CSAFPID-6",
            "CSAFPID-7",
            "CSAFPID-8",
            "CSAFPID-9",
            "CSAFPID-10",
            "CSAFPID-11",
            "CSAFPID-12",
            "CSAFPID-13",
            "CSAFPID-14",
            "CSAFPID-15",
            "CSAFPID-16",
            "CSAFPID-17",
            "CSAFPID-18",
            "CSAFPID-19",
            "CSAFPID-20",
            "CSAFPID-21",
            "CSAFPID-22",
            "CSAFPID-23",
            "CSAFPID-24",
            "CSAFPID-25"
          ]
        }
      ],
      "title": "CVE-2026-21259"
    },
    {
      "cve": "CVE-2026-21258",
      "cwe": {
        "id": "CWE-125",
        "name": "Out-of-bounds Read"
      },
      "notes": [
        {
          "category": "other",
          "text": "Out-of-bounds Read",
          "title": "CWE-125"
        },
        {
          "category": "other",
          "text": "Improper Input Validation",
          "title": "CWE-20"
        },
        {
          "category": "description",
          "text": "Improper input validation in Microsoft Office Excel can allow unauthorized attackers to locally disclose sensitive information.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3",
          "CSAFPID-4",
          "CSAFPID-5",
          "CSAFPID-6",
          "CSAFPID-7",
          "CSAFPID-8",
          "CSAFPID-9",
          "CSAFPID-10",
          "CSAFPID-11",
          "CSAFPID-12",
          "CSAFPID-13",
          "CSAFPID-14",
          "CSAFPID-15",
          "CSAFPID-16",
          "CSAFPID-17",
          "CSAFPID-18",
          "CSAFPID-19",
          "CSAFPID-20",
          "CSAFPID-21",
          "CSAFPID-22",
          "CSAFPID-23",
          "CSAFPID-24",
          "CSAFPID-25"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-21258 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-21258.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3",
            "CSAFPID-4",
            "CSAFPID-5",
            "CSAFPID-6",
            "CSAFPID-7",
            "CSAFPID-8",
            "CSAFPID-9",
            "CSAFPID-10",
            "CSAFPID-11",
            "CSAFPID-12",
            "CSAFPID-13",
            "CSAFPID-14",
            "CSAFPID-15",
            "CSAFPID-16",
            "CSAFPID-17",
            "CSAFPID-18",
            "CSAFPID-19",
            "CSAFPID-20",
            "CSAFPID-21",
            "CSAFPID-22",
            "CSAFPID-23",
            "CSAFPID-24",
            "CSAFPID-25"
          ]
        }
      ],
      "title": "CVE-2026-21258"
    },
    {
      "cve": "CVE-2026-21261",
      "cwe": {
        "id": "CWE-125",
        "name": "Out-of-bounds Read"
      },
      "notes": [
        {
          "category": "other",
          "text": "Out-of-bounds Read",
          "title": "CWE-125"
        },
        {
          "category": "description",
          "text": "An out-of-bounds read vulnerability in Microsoft Office Excel allows unauthorized attackers to locally disclose sensitive information.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3",
          "CSAFPID-4",
          "CSAFPID-5",
          "CSAFPID-6",
          "CSAFPID-7",
          "CSAFPID-8",
          "CSAFPID-9",
          "CSAFPID-10",
          "CSAFPID-11",
          "CSAFPID-12",
          "CSAFPID-13",
          "CSAFPID-14",
          "CSAFPID-15",
          "CSAFPID-16",
          "CSAFPID-17",
          "CSAFPID-18",
          "CSAFPID-19",
          "CSAFPID-20",
          "CSAFPID-21",
          "CSAFPID-22",
          "CSAFPID-23",
          "CSAFPID-24",
          "CSAFPID-25"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-21261 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-21261.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3",
            "CSAFPID-4",
            "CSAFPID-5",
            "CSAFPID-6",
            "CSAFPID-7",
            "CSAFPID-8",
            "CSAFPID-9",
            "CSAFPID-10",
            "CSAFPID-11",
            "CSAFPID-12",
            "CSAFPID-13",
            "CSAFPID-14",
            "CSAFPID-15",
            "CSAFPID-16",
            "CSAFPID-17",
            "CSAFPID-18",
            "CSAFPID-19",
            "CSAFPID-20",
            "CSAFPID-21",
            "CSAFPID-22",
            "CSAFPID-23",
            "CSAFPID-24",
            "CSAFPID-25"
          ]
        }
      ],
      "title": "CVE-2026-21261"
    },
    {
      "cve": "CVE-2026-21260",
      "cwe": {
        "id": "CWE-200",
        "name": "Exposure of Sensitive Information to an Unauthorized Actor"
      },
      "notes": [
        {
          "category": "other",
          "text": "Exposure of Sensitive Information to an Unauthorized Actor",
          "title": "CWE-200"
        },
        {
          "category": "description",
          "text": "A vulnerability in Microsoft Office Outlook allows unauthorized attackers to exploit sensitive information, facilitating spoofing attacks over a network.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3",
          "CSAFPID-4",
          "CSAFPID-5",
          "CSAFPID-6",
          "CSAFPID-7",
          "CSAFPID-8",
          "CSAFPID-9",
          "CSAFPID-10",
          "CSAFPID-11",
          "CSAFPID-12",
          "CSAFPID-13",
          "CSAFPID-14",
          "CSAFPID-15",
          "CSAFPID-16",
          "CSAFPID-17",
          "CSAFPID-18",
          "CSAFPID-19",
          "CSAFPID-20",
          "CSAFPID-21",
          "CSAFPID-22",
          "CSAFPID-23",
          "CSAFPID-24",
          "CSAFPID-25"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-21260 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-21260.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3",
            "CSAFPID-4",
            "CSAFPID-5",
            "CSAFPID-6",
            "CSAFPID-7",
            "CSAFPID-8",
            "CSAFPID-9",
            "CSAFPID-10",
            "CSAFPID-11",
            "CSAFPID-12",
            "CSAFPID-13",
            "CSAFPID-14",
            "CSAFPID-15",
            "CSAFPID-16",
            "CSAFPID-17",
            "CSAFPID-18",
            "CSAFPID-19",
            "CSAFPID-20",
            "CSAFPID-21",
            "CSAFPID-22",
            "CSAFPID-23",
            "CSAFPID-24",
            "CSAFPID-25"
          ]
        }
      ],
      "title": "CVE-2026-21260"
    },
    {
      "cve": "CVE-2026-21511",
      "cwe": {
        "id": "CWE-502",
        "name": "Deserialization of Untrusted Data"
      },
      "notes": [
        {
          "category": "other",
          "text": "Deserialization of Untrusted Data",
          "title": "CWE-502"
        },
        {
          "category": "description",
          "text": "Deserialization of untrusted data in Microsoft Office Outlook can allow attackers to execute spoofing attacks over a network.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3",
          "CSAFPID-4",
          "CSAFPID-5",
          "CSAFPID-6",
          "CSAFPID-7",
          "CSAFPID-8",
          "CSAFPID-9",
          "CSAFPID-10",
          "CSAFPID-11",
          "CSAFPID-12",
          "CSAFPID-13",
          "CSAFPID-14",
          "CSAFPID-15",
          "CSAFPID-16",
          "CSAFPID-17",
          "CSAFPID-18",
          "CSAFPID-19",
          "CSAFPID-20",
          "CSAFPID-21",
          "CSAFPID-22",
          "CSAFPID-23",
          "CSAFPID-24",
          "CSAFPID-25"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-21511 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-21511.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3",
            "CSAFPID-4",
            "CSAFPID-5",
            "CSAFPID-6",
            "CSAFPID-7",
            "CSAFPID-8",
            "CSAFPID-9",
            "CSAFPID-10",
            "CSAFPID-11",
            "CSAFPID-12",
            "CSAFPID-13",
            "CSAFPID-14",
            "CSAFPID-15",
            "CSAFPID-16",
            "CSAFPID-17",
            "CSAFPID-18",
            "CSAFPID-19",
            "CSAFPID-20",
            "CSAFPID-21",
            "CSAFPID-22",
            "CSAFPID-23",
            "CSAFPID-24",
            "CSAFPID-25"
          ]
        }
      ],
      "title": "CVE-2026-21511"
    },
    {
      "cve": "CVE-2026-21514",
      "cwe": {
        "id": "CWE-807",
        "name": "Reliance on Untrusted Inputs in a Security Decision"
      },
      "notes": [
        {
          "category": "other",
          "text": "Reliance on Untrusted Inputs in a Security Decision",
          "title": "CWE-807"
        },
        {
          "category": "description",
          "text": "Microsoft Office Word contains a vulnerability that allows unauthorized attackers to elevate privileges locally by exploiting untrusted inputs in security decisions.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3",
          "CSAFPID-4",
          "CSAFPID-5",
          "CSAFPID-6",
          "CSAFPID-7",
          "CSAFPID-8",
          "CSAFPID-9",
          "CSAFPID-10",
          "CSAFPID-11",
          "CSAFPID-12",
          "CSAFPID-13",
          "CSAFPID-14",
          "CSAFPID-15",
          "CSAFPID-16",
          "CSAFPID-17",
          "CSAFPID-18",
          "CSAFPID-19",
          "CSAFPID-20",
          "CSAFPID-21",
          "CSAFPID-22",
          "CSAFPID-23",
          "CSAFPID-24",
          "CSAFPID-25"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-21514 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-21514.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3",
            "CSAFPID-4",
            "CSAFPID-5",
            "CSAFPID-6",
            "CSAFPID-7",
            "CSAFPID-8",
            "CSAFPID-9",
            "CSAFPID-10",
            "CSAFPID-11",
            "CSAFPID-12",
            "CSAFPID-13",
            "CSAFPID-14",
            "CSAFPID-15",
            "CSAFPID-16",
            "CSAFPID-17",
            "CSAFPID-18",
            "CSAFPID-19",
            "CSAFPID-20",
            "CSAFPID-21",
            "CSAFPID-22",
            "CSAFPID-23",
            "CSAFPID-24",
            "CSAFPID-25"
          ]
        }
      ],
      "title": "CVE-2026-21514"
    }
  ]
}

{
  "document": {
    "aggregate_severity": {
      "text": "hoch"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Excel ist ein Tabellenkalkulationsprogramm der Microsoft Office Suite und ist sowohl f\u00fcr Microsoft Windows als auch f\u00fcr Mac OS verf\u00fcgbar.\r\nMicrosoft Word ist ein Textverarbeitungsprogramm der Firma Microsoft f\u00fcr die Windows-Betriebssysteme und Mac OS.\r\nOutlook ist ein Personal Information Manager von Microsoft und ist Bestandteil der Office Suite.\r\nMicrosoft Office Online Server ist ein Serverprodukt, das browserbasierte Versionen von Word, PowerPoint, Excel und OneNote bereitstellt. \r\nMicrosoft Sharepoint Services ist ein Portalsystem f\u00fcr die zentrale Verwaltung von Dokumenten und Anwendungen. Die Inhalte werden u.a. \u00fcber Webseiten zur Verf\u00fcgung gestellt.\r\nDie Microsoft Office Suite beinhaltet zahlreiche B\u00fcroanwendungen wie Textverarbeitung, Tabellenkalkulation, Datenbank und weitere Applikationen.\r\nMicrosoft Sharepoint ist ein Portalsystem f\u00fcr die zentrale Verwaltung von Dokumenten und Anwendungen. Die Inhalte werden u. a. \u00fcber Webseiten zur Verf\u00fcgung gestellt.\r\nMicrosoft 365 Apps ist eine Office Suite f\u00fcr zahlreiche B\u00fcroanwendungen.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein Angreifer kann mehrere Schwachstellen in Microsoft Excel, Microsoft Word, Microsoft Outlook, Microsoft Office Online Server, Microsoft SharePoint, Microsoft Office, Microsoft SharePoint Server 2019 und Microsoft 365 Apps ausnutzen, um Administratorrechte zu erlangen, Spoofing-Angriffe durchzuf\u00fchren, Sicherheitsma\u00dfnahmen zu umgehen und vertrauliche Informationen offenzulegen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Windows",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2026-0371 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0371.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-0371 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0371"
      },
      {
        "category": "external",
        "summary": "Microsoft Leitfaden f\u00fcr Sicherheitsupdates",
        "url": "https://msrc.microsoft.com/update-guide/"
      }
    ],
    "source_lang": "en-US",
    "title": "Microsoft Office: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2026-02-10T23:00:00.000+00:00",
      "generator": {
        "date": "2026-02-11T09:42:32.084+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.5.0"
        }
      },
      "id": "WID-SEC-W-2026-0371",
      "initial_release_date": "2026-02-10T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-02-10T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Microsoft 365 Apps",
            "product": {
              "name": "Microsoft 365 Apps",
              "product_id": "T050753",
              "product_identification_helper": {
                "cpe": "cpe:/a:microsoft:365_apps:-"
              }
            }
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "2016",
                "product": {
                  "name": "Microsoft Excel 2016",
                  "product_id": "T050746",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:microsoft:excel:2016"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Excel"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "2019",
                "product": {
                  "name": "Microsoft Office 2019",
                  "product_id": "T050751",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:microsoft:office:2019"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "LTSC for Mac 2021",
                "product": {
                  "name": "Microsoft Office LTSC for Mac 2021",
                  "product_id": "T050754",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:microsoft:office:ltsc_for_mac_2021"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "LTSC 2021",
                "product": {
                  "name": "Microsoft Office LTSC 2021",
                  "product_id": "T050755",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:microsoft:office:ltsc_2021"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "LTSC 2024",
                "product": {
                  "name": "Microsoft Office LTSC 2024",
                  "product_id": "T050757",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:microsoft:office:ltsc_2024"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "LTSC for Mac 2024",
                "product": {
                  "name": "Microsoft Office LTSC for Mac 2024",
                  "product_id": "T050758",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:microsoft:office:ltsc_for_mac_2024"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Office"
          },
          {
            "category": "product_name",
            "name": "Microsoft Office Online Server",
            "product": {
              "name": "Microsoft Office Online Server",
              "product_id": "T050749",
              "product_identification_helper": {
                "cpe": "cpe:/a:microsoft:office_online_server:-"
              }
            }
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "2016",
                "product": {
                  "name": "Microsoft Outlook 2016",
                  "product_id": "T050748",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:microsoft:outlook:2016"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Outlook"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "Enterprise Server 2016",
                "product": {
                  "name": "Microsoft SharePoint Enterprise Server 2016",
                  "product_id": "T050750",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:microsoft:sharepoint:enterprise_server_2016"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "Server Subscription Edition",
                "product": {
                  "name": "Microsoft SharePoint Server Subscription Edition",
                  "product_id": "T050756",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:microsoft:sharepoint:server_subscription_edition"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SharePoint"
          },
          {
            "category": "product_name",
            "name": "Microsoft SharePoint Server 2019",
            "product": {
              "name": "Microsoft SharePoint Server 2019",
              "product_id": "T050752",
              "product_identification_helper": {
                "cpe": "cpe:/a:microsoft:sharepoint_server_2019:-"
              }
            }
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "2016",
                "product": {
                  "name": "Microsoft Word 2016",
                  "product_id": "T050747",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:microsoft:word:2016"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Word"
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-21258",
      "product_status": {
        "known_affected": [
          "T050752",
          "T050751",
          "T050754",
          "T050753",
          "T050750",
          "T050749",
          "T050748",
          "T050756",
          "T050755",
          "T050747",
          "T050758",
          "T050746",
          "T050757"
        ]
      },
      "release_date": "2026-02-10T23:00:00.000+00:00",
      "title": "CVE-2026-21258"
    },
    {
      "cve": "CVE-2026-21259",
      "product_status": {
        "known_affected": [
          "T050752",
          "T050751",
          "T050754",
          "T050753",
          "T050750",
          "T050749",
          "T050748",
          "T050756",
          "T050755",
          "T050747",
          "T050758",
          "T050746",
          "T050757"
        ]
      },
      "release_date": "2026-02-10T23:00:00.000+00:00",
      "title": "CVE-2026-21259"
    },
    {
      "cve": "CVE-2026-21260",
      "product_status": {
        "known_affected": [
          "T050752",
          "T050751",
          "T050754",
          "T050753",
          "T050750",
          "T050749",
          "T050748",
          "T050756",
          "T050755",
          "T050747",
          "T050758",
          "T050746",
          "T050757"
        ]
      },
      "release_date": "2026-02-10T23:00:00.000+00:00",
      "title": "CVE-2026-21260"
    },
    {
      "cve": "CVE-2026-21261",
      "product_status": {
        "known_affected": [
          "T050752",
          "T050751",
          "T050754",
          "T050753",
          "T050750",
          "T050749",
          "T050748",
          "T050756",
          "T050755",
          "T050747",
          "T050758",
          "T050746",
          "T050757"
        ]
      },
      "release_date": "2026-02-10T23:00:00.000+00:00",
      "title": "CVE-2026-21261"
    },
    {
      "cve": "CVE-2026-21511",
      "product_status": {
        "known_affected": [
          "T050752",
          "T050751",
          "T050754",
          "T050753",
          "T050750",
          "T050749",
          "T050748",
          "T050756",
          "T050755",
          "T050747",
          "T050758",
          "T050746",
          "T050757"
        ]
      },
      "release_date": "2026-02-10T23:00:00.000+00:00",
      "title": "CVE-2026-21511"
    },
    {
      "cve": "CVE-2026-21514",
      "product_status": {
        "known_affected": [
          "T050752",
          "T050751",
          "T050754",
          "T050753",
          "T050750",
          "T050749",
          "T050748",
          "T050756",
          "T050755",
          "T050747",
          "T050758",
          "T050746",
          "T050757"
        ]
      },
      "release_date": "2026-02-10T23:00:00.000+00:00",
      "title": "CVE-2026-21514"
    }
  ]
}