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CVE-2025-29794: Microsoft SharePoint Remote Code Execution Vulnerability

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-04-08 · updated 2026-08-10
• Weakness: CWE-285

Description

Improper authorization in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.

Affected products

• Microsoft SharePoint Server: 2016
• Microsoft SharePoint Server: before 16.0.18526.20172; 2019 — fixed in 16.0.18526.20172
• Microsoft SharePoint Server Subscription Edition: from 16.0.0 before 16.0.18526.20172 — fixed in 16.0.18526.20172
• Microsoft Sharepoint Enterprise Server 2016: from 16.0.0 before 16.0.5495.1002 — fixed in 16.0.5495.1002
• Microsoft SharePoint Server: from 16.0.0 before 16.0.10417.20003 — fixed in 16.0.10417.20003

How to fix

Upgrade to a fixed version: Microsoft SharePoint Server 16.0.18526.20172; Microsoft SharePoint Server Subscription Edition 16.0.18526.20172; Microsoft Sharepoint Enterprise Server 2016 16.0.5495.1002; Microsoft SharePoint Server 16.0.10417.20003. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29794

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