WID-SEC-W-2026-1490

csafDEcert_bund

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Microsoft Office: Mehrere Schwachstellen

Advisory ansehen veröffentlicht 2026-05-12

Ein Angreifer kann mehrere Schwachstellen in Microsoft Excel, Microsoft Word, Microsoft Office, Microsoft Office Online Server, Microsoft SharePoint, Microsoft SharePoint Server 2019, Microsoft Outlook, Microsoft Teams, Microsoft 365 Apps und Microsoft PowerPoint ausnutzen, um erweiterte Berechtigungen – einschließlich Administratorrechte – zu erlangen, beliebigen Code im Kontext des Dienstes auszuführen, Spoofing-Angriffe durchzuführen, Daten zu manipulieren und vertrauliche Informationen offenzulegen.

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beschreibt (27)

Zugehörige CVEs.

IDSchweregrad ausnutzbar
CVE-2026-42893UShigh7.5—
Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to perform tampering over a network.
CVE-2026-42832USmedium5.5—
Improper access control in Microsoft Office allows an unauthorized attacker to perform spoofing locally.
CVE-2026-42831US——
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
CVE-2026-41102USmedium5.5—
Improper access control in Microsoft Office PowerPoint allows an authorized attacker to perform spoofing locally.
CVE-2026-40421US——
Files or directories accessible to external parties in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
CVE-2026-40420US——
Use after free in Microsoft Office allows an authorized attacker to elevate privileges locally.
CVE-2026-40419US——
Use after free in Microsoft Office allows an authorized attacker to elevate privileges locally.
CVE-2026-40418US——
Use after free in Microsoft Office allows an authorized attacker to elevate privileges locally.
CVE-2026-40368US——
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
CVE-2026-40367US——
Access of resource using incompatible type ('type confusion') in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVE-2026-40366US——
Access of resource using incompatible type ('type confusion') in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVE-2026-40365US——
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
CVE-2026-40364US——
Access of resource using incompatible type ('type confusion') in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVE-2026-40363US——
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
CVE-2026-40362US——
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-40361US——
Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
CVE-2026-40360US——
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
CVE-2026-40359US——
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-40358US——
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
CVE-2026-40357US——
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
20 von 27 angezeigt
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Referenzen

Externe Belege — Patches, Meldungen, Analysen.

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