CVE-2026-47640: Microsoft SharePoint Server Spoofing Vulnerability
This Microsoft advisory covers CVE-2026-47640 in Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019 and Microsoft SharePoint Server Subscription Edition.
- CVE-2026-47640
Key facts
- Vendor rating
- Medium, CVSS 4.6
- CISA KEV
- Not listed (catalogue checked )
- Fixed in
- KB5002880 (build 16.0.5556.1005), KB5002874 (build 16.0.10417.20153), KB5002873 (build 16.0.19725.20384)
- Source published
- Listed by VulniPulse
Compiled by VulniPulse from the linked sources. How records are collected and checked.
Affected products & platforms
Description
Microsoft SharePoint Server Spoofing Vulnerability
Affected products named by the advisory: Microsoft SharePoint Enterprise Server 2016; Microsoft SharePoint Server 2019; Microsoft SharePoint Server Subscription Edition.
Text from the source record.
How to fix CVE-2026-47640
Upgrade to a fixed release named by Microsoft:
- KB5002880 (build 16.0.5556.1005)
- KB5002874 (build 16.0.10417.20153)
- KB5002873 (build 16.0.19725.20384)
Vendor guidance
- Install the applicable security update for your platform: KB5002880, KB5002874, KB5002873 (see the Microsoft Update Catalog).
End-of-life dates for Microsoft SharePoint Server
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Microsoft Server advisories, June 2026All Microsoft Server advisories
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