CVE-2026-65660
Microsoft SharePoint Server Remote Code Execution Vulnerability
Microsoft·SharePoint
- Added
- Sep 25, 2026
- Fix due
- Sep 28, 2026
- Ransomware
- Not known
- Published
- Aug 11, 2026
- Updated
- Oct 30, 2026
- First covered
- Sep 25, 2026
- Latest story
- 2 months ago
Summary
Improper control of generation of code ('code injection') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
CWE-94Improper Control of Generation of Code ('Code Injection')
Attack profile
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:CCISA required action
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 applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Affected products
- Microsoft SharePoint Enterprise Server 201616.0.0 to before 16.0.5565.1001
- Microsoft SharePoint Server 201916.0.0 to before 16.0.10417.20198
- Microsoft SharePoint Server Subscription Edition16.0.0 to before 16.0.19725.20522