CVE-2026-20963

HIGH

Microsoft Office SharePoint - Code Injection

Title source: llm

Description

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

References (1)

Scores

CVSS v3 8.8
EPSS 0.0163
EPSS Percentile 81.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Classification

CWE
CWE-502
Status published

Affected Products (3)

microsoft/sharepoint_server < 16.0.19127.20442
microsoft/sharepoint_server
microsoft/sharepoint_server

Timeline

Published Jan 13, 2026
Tracked Since Feb 18, 2026