High8.8Microsoft Server
Microsoft SharePoint Elevation of Privilege Vulnerability
CVE-2026-45484 Published Jun 9, 2026
Affected products & platforms
Microsoft ServerSharePoint Server
Summary
Microsoft SharePoint Elevation of Privilege Vulnerability Affected products named by the advisory: Microsoft SharePoint Enterprise Server 2016; Microsoft SharePoint Server 2019; Microsoft SharePoint Server Subscription Edition.
Fixed versions
- KB5002880 (build 16.0.5556.1005)
- KB5002874 (build 16.0.10417.20153)
- KB5002873 (build 16.0.19725.20384)
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation checklist
Recommended fix / mitigation
- Install the applicable security update for your platform: KB5002880, KB5002874, KB5002873 (see the Microsoft Update Catalog).
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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