WID-SEC-W-2026-1536

Vulnerability from csaf_certbund - Published: 2026-05-14 22:00 - Updated: 2026-06-10 22:00
Summary
Microsoft Exchange Server: Schwachstelle ermöglicht Cross-Site-Scripting- und Spoofing-Angriffe
Severity
Hoch
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: Exchange ist ein Groupware und Nachrichtensystem der Firma Microsoft.
Angriff: Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Microsoft Exchange Server ausnutzen, um Cross-Site-Scripting- und Spoofing-Angriffe durchzuführen.
Betroffene Betriebssysteme: - Windows
CVE-2026-42897
Affected products
Product Identifier Version Remediation
Microsoft Exchange Server 2019 Cumulative Update 14
Microsoft / Exchange
 cpe:/a:microsoft:exchange:server_2019_cumulative_update_14 Server 2019 Cumulative Update 14
Microsoft Exchange Server 2016 Cumulative Update 23
Microsoft / Exchange
 cpe:/a:microsoft:exchange:server_2016_cumulative_update_23 Server 2016 Cumulative Update 23
Microsoft Exchange Server Subscription Edition RTM
Microsoft / Exchange
 cpe:/a:microsoft:exchange:server_subscription_edition_rtm Server Subscription Edition RTM
References
To clipboard 

{
  "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": "Exchange ist ein Groupware und Nachrichtensystem der Firma Microsoft.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Microsoft Exchange Server ausnutzen, um Cross-Site-Scripting- und Spoofing-Angriffe durchzuf\u00fchren.",
        "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-2026-1536 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1536.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-1536 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1536"
      },
      {
        "category": "external",
        "summary": "Microsoft Leitfaden f\u00fcr Sicherheitsupdates",
        "url": "https://msrc.microsoft.com/update-guide/"
      },
      {
        "category": "external",
        "summary": "Microsoft Security Update CVE-2026-42897 vom 2026-05-14",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42897"
      }
    ],
    "source_lang": "en-US",
    "title": "Microsoft Exchange Server: Schwachstelle erm\u00f6glicht Cross-Site-Scripting- und Spoofing-Angriffe",
    "tracking": {
      "current_release_date": "2026-06-10T22:00:00.000+00:00",
      "generator": {
        "date": "2026-06-11T11:20:58.250+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2026-1536",
      "initial_release_date": "2026-05-14T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-05-14T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-06-10T22:00:00.000+00:00",
          "number": "2",
          "summary": "-"
        }
      ],
      "status": "final",
      "version": "2"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "Server 2016 Cumulative Update 23",
                "product": {
                  "name": "Microsoft Exchange Server 2016 Cumulative Update 23",
                  "product_id": "T054166",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:microsoft:exchange:server_2016_cumulative_update_23"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "Server 2019 Cumulative Update 14",
                "product": {
                  "name": "Microsoft Exchange Server 2019 Cumulative Update 14",
                  "product_id": "T054167",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:microsoft:exchange:server_2019_cumulative_update_14"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "Server Subscription Edition RTM",
                "product": {
                  "name": "Microsoft Exchange Server Subscription Edition RTM",
                  "product_id": "T054168",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:microsoft:exchange:server_subscription_edition_rtm"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "Exchange"
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-42897",
      "product_status": {
        "known_affected": [
          "T054167",
          "T054166",
          "T054168"
        ]
      },
      "release_date": "2026-05-14T22:00:00.000+00:00",
      "title": "CVE-2026-42897"
    }
  ]
}


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