Aug 2026: Microsoft SharePoint Server Remote Code Execution Vulnerability
CVE-2026-65660 Published on August 11, 2026
Microsoft SharePoint Server Remote Code Execution Vulnerability
Improper control of generation of code ('code injection') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Known Exploited Vulnerability
This Microsoft SharePoint Code Injection Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Microsoft SharePoint contains a code injection vulnerability which could allow an authorized attacker to execute code over a network.
The following remediation steps are recommended / required by September 28, 2026: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicab
Weakness Type
What is a Code Injection Vulnerability?
The software constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
CVE-2026-65660 has been classified to as a Code Injection vulnerability or weakness.
Products Associated with CVE-2026-65660
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Affected Versions
Microsoft SharePoint Enterprise Server 2016:- Version 16.0.0 and below 16.0.5565.1001 is affected.
- Version 16.0.0 and below 16.0.10417.20198 is affected.
- Version 16.0.0 and below 16.0.19725.20522 is affected.