CVE-2026-20963: Microsoft SharePoint Deserialization of Untrusted Data Vulnerability

Vereiste actie (tekst van CISA, Engels)

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Beschrijving (NVD, Engels)

Microsoft SharePoint contains a deserialization of untrusted data vulnerability that allows an unauthorized attacker to execute code over a network.

BRONNEN

• CISA KEVCISA Known Exploited Vulnerabilities catalog

Andere lekken bij Microsoft

• patchtuesday:2026-11: Kwetsbaarheid in Microsoft
• CVE-2026-124194: Microsoft Office Outlook Missing User Interaction for Potentially Unsafe Action Vulnerability
• CVE-2026-96951: Microsoft Windows Command Injection Vulnerability
• CVE-2026-65660: Microsoft SharePoint Code Injection Vulnerability
• CVE-2026-85880: Microsoft Windows Heap-Based Buffer Overflow Vulnerability

Gegevens van NVD, CISA KEV, FIRST EPSS en adviezen van leveranciers. Bijgewerkt 10 nov 2026.