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CVE-2025-21191
HIGH
CVSS: 7.0
Published: 2025-04-08
Modified: 2026-06-17
Description
Time-of-check time-of-use (toctou) race condition in Windows Local Security Authority (LSA) allows an authorized attacker to elevate privileges locally.
Affected Platforms
Microsoft Windows Server 2016Microsoft Windows 10 21H2Microsoft Windows 11 24H2Microsoft Windows Server 2019Microsoft Windows 10 22H2Microsoft Windows Server 2025Microsoft Windows Server 2008Microsoft Windows Server 2022Microsoft Windows 10 1507Microsoft Windows 10 1809