CVE-2026-20963

high Microsoft
CVSS v3 Base Score
8.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: January 13, 2026
Last Modified: January 14, 2026
Vendor: Microsoft

Description

Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

CWE

CWE-502

Affected Products

microsoft sharepoint server

References

🔗 msrc.microsoft.com