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KB5123303

Security Update

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Fixed in

Fixes 1 record

TI-2026-47439 CVE-2026-66799 · GHSA-cr27-wq5j-8m89

Windows Key Guard Elevation of Privilege Vulnerability

Priority LOW 36

Heap-based buffer overflow in Windows Key Guard allows an authorized attacker to elevate privileges locally.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00333 Published 2026-08-11 Fixed in 10.0.14393.9418, 10.0.17763.9121 +10 CWE-122