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May 12, 2026—Hotpatch KB5089466 (OS Builds 26200.8390 and 26100.8390)

🗓️ 09 Jun 2026 14:00:00Reported by MicrosoftType 
mskb
 mskb
🔗 support.microsoft.com👁 13 Views

Windows 11 hotpatch for 25H2 and 24H2 adds security fixes and SSDP/Remote Desktop improvements; Secure Boot certificates expire June 2026.

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09 Jun 2026 14:00Current
6.1Medium risk
Vulners AI Score6.1
CVSS 47.3
CVSS 3.17 - 9.8
EPSS0.03519
SSVC
13