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May 12, 2026-KB5087052 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Microsoft server operating system, version 23H2

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

May 12, 2026 update fixes two elevation of privilege CVEs for Dot Net Framework 3.5 and 4.8.1 on Windows Server 23H2.

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12 May 2026 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17.3
EPSS0.00096
SSVC
12