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May 12, 2026—KB5087539(OS Build 26100.32860)

🗓️ 12 May 2026 14:00:00Reported by MicrosoftType 
mskb
 mskb
🔗 support.microsoft.com👁 17 Views

Cumulative Windows Server 2025 update with security fixes, improvements, and Secure Boot expiry guidance.

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12 May 2026 14:00Current
7.1High risk
Vulners AI Score7.1
CVSS 47.3
CVSS 3.17 - 9.8
EPSS0.72697
SSVC
17