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HIGH · 7.8

CVE-2026-20951

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

Vulnerability Description

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

CVSS Score

7.8

HIGH

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

Affected Products

VendorProductVersions
MicrosoftSharepoint Server< 16.0.19127.20442

Related Weaknesses (CWE)

CWE-20

References

FAQ

What is CVE-2026-20951?

CVE-2026-20951 is a vulnerability with a CVSS score of 7.8 (HIGH). Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to execute code locally.

How severe is CVE-2026-20951?

CVE-2026-20951 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-20951?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Sharepoint Server.