CVE-2026-20951
HIGH
2026-01-13
[email protected]
7.8
CVSS 3.1
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CVSS Vector
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
Lifecycle Timeline
2
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
CVE Published
Jan 13, 2026 - 18:16 nvd
HIGH 7.8
Description
Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to execute code locally.
Analysis
Local code execution in Microsoft SharePoint Server results from inadequate input validation, enabling attackers with local access to execute arbitrary code with user interaction. The vulnerability affects SharePoint deployments and carries high impact across confidentiality, integrity, and authenticity. …
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Remediation
Within 7 days: Identify all affected systems and apply vendor patches promptly. Monitor vendor channels for patch availability.
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Priority Score
44
Low
Medium
High
Critical
KEV: 0
EPSS: +0.1
CVSS: +39
POC: 0
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External POC / Exploit Code
Leaving vuln.today
Destination URL
POC code from unknown sources may be malicious, contain backdoors, or be fake.
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Verify the source reputation and cross-reference with known databases (Exploit-DB, GitHub Security).