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Description of the security update for Office Online Server: May 12, 2026 (KB5002871)

🗓️ 12 May 2026 14:00:00Reported by MicrosoftType 
mskb
 mskb
🔗 support.microsoft.com👁 37 Views

Office Online Server security update May 12, 2026 fixes Excel remote code execution and disclosure vulnerabilities.

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12 May 2026 14:00Current
7.3High risk
Vulners AI Score7.3
CVSS 3.17.8
EPSS0.00466
SSVC
37