What’s Vulnerable › Vulnerabilities
CVE-2026-20951: Microsoft SharePoint Server Remote Code Execution Vulnerability
- Severity: high (CVSS 7.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.8% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-01-13 · updated 2026-07-30
- Weakness: CWE-20
Description
Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to execute code locally.
Affected products
- Microsoft SharePoint Server: before 16.0.19127.20442; 2016, 2019 — fixed in 16.0.19127.20442
- Microsoft SharePoint Server Subscription Edition: from 16.0.0 before 16.0.19127.20442 — fixed in 16.0.19127.20442
- Microsoft Sharepoint Enterprise Server 2016: from 16.0.0 before 16.0.5535.1001 — fixed in 16.0.5535.1001
- Microsoft SharePoint Server: from 16.0.0 before 16.0.10417.20083 — fixed in 16.0.10417.20083
How to fix
Upgrade to a fixed version: Microsoft SharePoint Server 16.0.19127.20442; Microsoft SharePoint Server Subscription Edition 16.0.19127.20442; Microsoft Sharepoint Enterprise Server 2016 16.0.5535.1001; Microsoft SharePoint Server 16.0.10417.20083. Check the vendor advisory for mitigations.
References
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