WID-SEC-W-2026-0090

Vulnerability from csaf_certbund - Published: 2026-01-13 23:00 - Updated: 2026-01-19 23:00
Summary
Mozilla Firefox und Thunderbird: Mehrere Schwachstellen

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.
Produktbeschreibung
Firefox ist ein Open Source Web Browser. Thunderbird ist ein Open Source E-Mail Client.
Angriff
Ein Angreifer kann mehrere Schwachstellen in Mozilla Firefox und Thunderbird ausnutzen, um einen Denial-of-Service-Zustand herbeizuführen, vertrauliche Informationen offenzulegen, Spoofing-Angriffe durchzuführen, Sicherheitsmaßnahmen zu umgehen, Speicherbeschädigungen zu verursachen, die möglicherweise zur Ausführung von beliebigem Code führen, oder andere nicht näher definierte Angriffe durchzuführen.
Betroffene Betriebssysteme
- Linux - MacOS X - UNIX - Windows
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "text": "mittel"
    },
    "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": "Firefox ist ein Open Source Web Browser.\r\nThunderbird ist ein Open Source E-Mail Client.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein Angreifer kann mehrere Schwachstellen in Mozilla Firefox und Thunderbird ausnutzen, um einen Denial-of-Service-Zustand herbeizuf\u00fchren, vertrauliche Informationen offenzulegen, Spoofing-Angriffe durchzuf\u00fchren, Sicherheitsma\u00dfnahmen zu umgehen, Speicherbesch\u00e4digungen zu verursachen, die m\u00f6glicherweise zur Ausf\u00fchrung von beliebigem Code f\u00fchren, oder andere nicht n\u00e4her definierte Angriffe durchzuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux\n- MacOS X\n- UNIX\n- 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-2026-0090 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0090.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-0090 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0090"
      },
      {
        "category": "external",
        "summary": "Mozilla Foundation Security Advisory MFSA 2026-01 vom 2026-01-13",
        "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-01/"
      },
      {
        "category": "external",
        "summary": "Mozilla Foundation Security Advisory MFSA 2026-02 vom 2026-01-13",
        "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-02/"
      },
      {
        "category": "external",
        "summary": "Mozilla Foundation Security Advisory MFSA 2026-03 vom 2026-01-13",
        "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-03/"
      },
      {
        "category": "external",
        "summary": "openSUSE Security Update OPENSUSE-SU-2026:10037-1 vom 2026-01-14",
        "url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/MWE7GIFYIBLX76K6B34TZZ67PXOQMQY6/"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:0667 vom 2026-01-15",
        "url": "https://access.redhat.com/errata/RHSA-2026:0667"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:0122-1 vom 2026-01-14",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-January/023741.html"
      },
      {
        "category": "external",
        "summary": "Mozilla Security Advisory MFSA2026-04 vom 2026-01-15",
        "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-04/"
      },
      {
        "category": "external",
        "summary": "Mozilla Security Advisory MFSA2026-05 vom 2026-01-15",
        "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-05/"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:0694 vom 2026-01-15",
        "url": "https://access.redhat.com/errata/RHSA-2026:0694"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-4439 vom 2026-01-15",
        "url": "https://lists.debian.org/debian-lts-announce/2026/01/msg00010.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DSA-6101 vom 2026-01-15",
        "url": "https://lists.debian.org/debian-security-announce/2026/msg00009.html"
      },
      {
        "category": "external",
        "summary": "openSUSE Security Update OPENSUSE-SU-2026:10046-1 vom 2026-01-15",
        "url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/2E4U6WVD3HP25MAGYON4BCRAFHCTX3SC/"
      },
      {
        "category": "external",
        "summary": "Rocky Linux Security Advisory RLSA-2026:0667 vom 2026-01-16",
        "url": "https://errata.build.resf.org/RLSA-2026:0667"
      },
      {
        "category": "external",
        "summary": "Rocky Linux Security Advisory RLSA-2026:0694 vom 2026-01-16",
        "url": "https://errata.build.resf.org/RLSA-2026:0694"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DSA-6103 vom 2026-01-17",
        "url": "https://lists.debian.org/debian-security-announce/2026/msg00011.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-0694 vom 2026-01-16",
        "url": "https://linux.oracle.com/errata/ELSA-2026-0694.html"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2026-0667 vom 2026-01-16",
        "url": "https://linux.oracle.com/errata/ELSA-2026-0667.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-4442 vom 2026-01-19",
        "url": "https://lists.debian.org/debian-lts-announce/2026/01/msg00013.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:0153-1 vom 2026-01-19",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-January/023791.html"
      }
    ],
    "source_lang": "en-US",
    "title": "Mozilla Firefox und Thunderbird: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2026-01-19T23:00:00.000+00:00",
      "generator": {
        "date": "2026-01-20T08:04:50.714+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.5.0"
        }
      },
      "id": "WID-SEC-W-2026-0090",
      "initial_release_date": "2026-01-13T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-01-13T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-01-14T23:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von openSUSE, Red Hat, European Union Vulnerability Database und SUSE aufgenommen"
        },
        {
          "date": "2026-01-15T23:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Debian und openSUSE aufgenommen"
        },
        {
          "date": "2026-01-18T23:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von Debian und Oracle Linux aufgenommen"
        },
        {
          "date": "2026-01-19T23:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von Debian und SUSE aufgenommen"
        }
      ],
      "status": "final",
      "version": "5"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Debian Linux",
            "product": {
              "name": "Debian Linux",
              "product_id": "2951",
              "product_identification_helper": {
                "cpe": "cpe:/o:debian:debian_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Debian"
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c147",
                "product": {
                  "name": "Mozilla Firefox \u003c147",
                  "product_id": "T049898"
                }
              },
              {
                "category": "product_version",
                "name": "147",
                "product": {
                  "name": "Mozilla Firefox 147",
                  "product_id": "T049898-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mozilla:firefox:147"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Firefox"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c115.32",
                "product": {
                  "name": "Mozilla Firefox ESR \u003c115.32",
                  "product_id": "T049939"
                }
              },
              {
                "category": "product_version",
                "name": "115.32",
                "product": {
                  "name": "Mozilla Firefox ESR 115.32",
                  "product_id": "T049939-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mozilla:firefox_esr:115.32"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c140.7",
                "product": {
                  "name": "Mozilla Firefox ESR \u003c140.7",
                  "product_id": "T049940"
                }
              },
              {
                "category": "product_version",
                "name": "140.7",
                "product": {
                  "name": "Mozilla Firefox ESR 140.7",
                  "product_id": "T049940-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mozilla:firefox_esr:140.7"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Firefox ESR"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "ESR \u003c140.7",
                "product": {
                  "name": "Mozilla Thunderbird ESR \u003c140.7",
                  "product_id": "T049941"
                }
              },
              {
                "category": "product_version",
                "name": "ESR 140.7",
                "product": {
                  "name": "Mozilla Thunderbird ESR 140.7",
                  "product_id": "T049941-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mozilla:thunderbird:esr__140.7"
                  }
                }
              },
              {
                "category": "product_version_range",
                "name": "\u003c147",
                "product": {
                  "name": "Mozilla Thunderbird \u003c147",
                  "product_id": "T049942"
                }
              },
              {
                "category": "product_version",
                "name": "147",
                "product": {
                  "name": "Mozilla Thunderbird 147",
                  "product_id": "T049942-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:mozilla:thunderbird:147"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Thunderbird"
          }
        ],
        "category": "vendor",
        "name": "Mozilla"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Oracle Linux",
            "product": {
              "name": "Oracle Linux",
              "product_id": "T004914",
              "product_identification_helper": {
                "cpe": "cpe:/o:oracle:linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Oracle"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "RESF Rocky Linux",
            "product": {
              "name": "RESF Rocky Linux",
              "product_id": "T032255",
              "product_identification_helper": {
                "cpe": "cpe:/o:resf:rocky_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "RESF"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Red Hat Enterprise Linux",
            "product": {
              "name": "Red Hat Enterprise Linux",
              "product_id": "67646",
              "product_identification_helper": {
                "cpe": "cpe:/o:redhat:enterprise_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "SUSE Linux",
            "product": {
              "name": "SUSE Linux",
              "product_id": "T002207",
              "product_identification_helper": {
                "cpe": "cpe:/o:suse:suse_linux:-"
              }
            }
          },
          {
            "category": "product_name",
            "name": "SUSE openSUSE",
            "product": {
              "name": "SUSE openSUSE",
              "product_id": "T027843",
              "product_identification_helper": {
                "cpe": "cpe:/o:suse:opensuse:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-14327",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T049939",
          "T027843",
          "T004914",
          "T032255",
          "T049898",
          "T049942",
          "T049941",
          "T049940"
        ]
      },
      "release_date": "2026-01-13T23:00:00.000+00:00",
      "title": "CVE-2025-14327"
    },
    {
      "cve": "CVE-2026-0877",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T049939",
          "T027843",
          "T004914",
          "T032255",
          "T049898",
          "T049942",
          "T049941",
          "T049940"
        ]
      },
      "release_date": "2026-01-13T23:00:00.000+00:00",
      "title": "CVE-2026-0877"
    },
    {
      "cve": "CVE-2026-0878",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T049939",
          "T027843",
          "T004914",
          "T032255",
          "T049898",
          "T049942",
          "T049941",
          "T049940"
        ]
      },
      "release_date": "2026-01-13T23:00:00.000+00:00",
      "title": "CVE-2026-0878"
    },
    {
      "cve": "CVE-2026-0879",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T049939",
          "T027843",
          "T004914",
          "T032255",
          "T049898",
          "T049942",
          "T049941",
          "T049940"
        ]
      },
      "release_date": "2026-01-13T23:00:00.000+00:00",
      "title": "CVE-2026-0879"
    },
    {
      "cve": "CVE-2026-0880",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T049939",
          "T027843",
          "T004914",
          "T032255",
          "T049898",
          "T049942",
          "T049941",
          "T049940"
        ]
      },
      "release_date": "2026-01-13T23:00:00.000+00:00",
      "title": "CVE-2026-0880"
    },
    {
      "cve": "CVE-2026-0881",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T049939",
          "T027843",
          "T004914",
          "T032255",
          "T049898",
          "T049942",
          "T049941",
          "T049940"
        ]
      },
      "release_date": "2026-01-13T23:00:00.000+00:00",
      "title": "CVE-2026-0881"
    },
    {
      "cve": "CVE-2026-0882",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T049939",
          "T027843",
          "T004914",
          "T032255",
          "T049898",
          "T049942",
          "T049941",
          "T049940"
        ]
      },
      "release_date": "2026-01-13T23:00:00.000+00:00",
      "title": "CVE-2026-0882"
    },
    {
      "cve": "CVE-2026-0883",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T049939",
          "T027843",
          "T004914",
          "T032255",
          "T049898",
          "T049942",
          "T049941",
          "T049940"
        ]
      },
      "release_date": "2026-01-13T23:00:00.000+00:00",
      "title": "CVE-2026-0883"
    },
    {
      "cve": "CVE-2026-0884",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T049939",
          "T027843",
          "T004914",
          "T032255",
          "T049898",
          "T049942",
          "T049941",
          "T049940"
        ]
      },
      "release_date": "2026-01-13T23:00:00.000+00:00",
      "title": "CVE-2026-0884"
    },
    {
      "cve": "CVE-2026-0885",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T049939",
          "T027843",
          "T004914",
          "T032255",
          "T049898",
          "T049942",
          "T049941",
          "T049940"
        ]
      },
      "release_date": "2026-01-13T23:00:00.000+00:00",
      "title": "CVE-2026-0885"
    },
    {
      "cve": "CVE-2026-0886",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T049939",
          "T027843",
          "T004914",
          "T032255",
          "T049898",
          "T049942",
          "T049941",
          "T049940"
        ]
      },
      "release_date": "2026-01-13T23:00:00.000+00:00",
      "title": "CVE-2026-0886"
    },
    {
      "cve": "CVE-2026-0887",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T049939",
          "T027843",
          "T004914",
          "T032255",
          "T049898",
          "T049942",
          "T049941",
          "T049940"
        ]
      },
      "release_date": "2026-01-13T23:00:00.000+00:00",
      "title": "CVE-2026-0887"
    },
    {
      "cve": "CVE-2026-0888",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T049939",
          "T027843",
          "T004914",
          "T032255",
          "T049898",
          "T049942",
          "T049941",
          "T049940"
        ]
      },
      "release_date": "2026-01-13T23:00:00.000+00:00",
      "title": "CVE-2026-0888"
    },
    {
      "cve": "CVE-2026-0889",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T049939",
          "T027843",
          "T004914",
          "T032255",
          "T049898",
          "T049942",
          "T049941",
          "T049940"
        ]
      },
      "release_date": "2026-01-13T23:00:00.000+00:00",
      "title": "CVE-2026-0889"
    },
    {
      "cve": "CVE-2026-0890",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T049939",
          "T027843",
          "T004914",
          "T032255",
          "T049898",
          "T049942",
          "T049941",
          "T049940"
        ]
      },
      "release_date": "2026-01-13T23:00:00.000+00:00",
      "title": "CVE-2026-0890"
    },
    {
      "cve": "CVE-2026-0891",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T049939",
          "T027843",
          "T004914",
          "T032255",
          "T049898",
          "T049942",
          "T049941",
          "T049940"
        ]
      },
      "release_date": "2026-01-13T23:00:00.000+00:00",
      "title": "CVE-2026-0891"
    },
    {
      "cve": "CVE-2026-0892",
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T049939",
          "T027843",
          "T004914",
          "T032255",
          "T049898",
          "T049942",
          "T049941",
          "T049940"
        ]
      },
      "release_date": "2026-01-13T23:00:00.000+00:00",
      "title": "CVE-2026-0892"
    }
  ]
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.