CVE-2026-20951 HIGH

CVE-2026-20951: Microsoft SharePoint Server Remote Code Execution Vulnerability

Vendor Microsoft
Product Microsoft SharePoint Enterprise Server 2016
Weakness CWE-20 · Input validation
Published January 13, 2026
Last update April 1, 2026
View on NVD All CVEs

CVSS base score

7.8/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

What the vulnerability does

01Description

Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to execute code locally.

Key dates

02Disclosure timeline

January 13, 2026 CVE published
April 1, 2026 Record updated