CVE-2026-20951

HIGH EPSS 51.0%
Published Jan 13, 20265mo ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Jan 13, 2026 5mo ago
Last Modified Jun 17, 2026 1w ago

Description

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

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
51.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-20 Improper Input Validation Validation

Affected Products 3

VendorProductVersionRange
microsoftsharepoint_server* <16.0.19127.20442
microsoftsharepoint_server2016any
microsoftsharepoint_server2019any

References 1

  • msrc.microsoft.com https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20951
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.