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Advisory severityHigh8.8Microsoft Server Exploited CISA KEV

High [CVE-2026-65660] Microsoft SharePoint Server Remote Code Execution Vulnerability

This high-severity Microsoft Server advisory covers CVE-2026-65660 affecting Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-65660 Source published Source updated

VulniPulse record published Record updated

CVE-2026-65660
Affected products & platforms
Microsoft ServerSharePoint Server
Open source advisory

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Summary

Microsoft SharePoint Server Remote Code Execution Vulnerability

Affected products named by the advisory: Microsoft SharePoint Enterprise Server 2016; Microsoft SharePoint Server 2019; Microsoft SharePoint Server Subscription Edition.

CISA Known Exploited Vulnerability

Listed:
Sep 25, 2026 · federal remediation due Sep 28, 2026
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.

KEV is a prioritization signal from CISA — remediation detail still comes from the vendor advisory.

Affected versions
  • Microsoft SharePoint Enterprise Server 2016 16.0.0 before 16.0.5565.1001
  • Microsoft SharePoint Server 2019 16.0.0 before 16.0.10417.20198
  • Microsoft SharePoint Server Subscription Edition 16.0.0 before 16.0.19725.20522

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions
  • KB5002905 (build 16.0.5565.1001)
  • KB5002906 (build 16.0.5565.1001)
  • KB5002894 (build 16.0.10417.20198)
  • KB5002896 (build 16.0.10417.20198)
  • KB5002893 (build 16.0.19725.20522)

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • Install the applicable security update for your platform: KB5002905, KB5002906, KB5002894, KB5002896, KB5002893 (see the Microsoft Update Catalog).

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Discussion(0)

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