7

CVE-2025-21191

Windows Local Security Authority (LSA) Elevation of Privilege Vulnerability

Time-of-check time-of-use (toctou) race condition in Windows Local Security Authority (LSA) allows an authorized attacker to elevate privileges locally.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Microsoft ≫ Windows 10 1507 HwPlatform x64 Version < 10.0.10240.20978
Microsoft ≫ Windows 10 1507 HwPlatform x86 Version < 10.0.10240.20978
Microsoft ≫ Windows 10 1607 HwPlatform x64 Version < 10.0.14393.7969
Microsoft ≫ Windows 10 1607 HwPlatform x86 Version < 10.0.14393.7969
Microsoft ≫ Windows 10 1809 HwPlatform x64 Version < 10.0.17763.7136
Microsoft ≫ Windows 10 1809 HwPlatform x86 Version < 10.0.17763.7136
Microsoft ≫ Windows 10 21h2 Version < 10.0.19044.5737
Microsoft ≫ Windows 10 22h2 Version < 10.0.19045.5737
Microsoft ≫ Windows 11 22h2 Version < 10.0.22621.5189
Microsoft ≫ Windows 11 23h2 Version < 10.0.22631.5189
Microsoft ≫ Windows 11 24h2 Version < 10.0.26100.3775
Microsoft ≫ Windows Server 2008 Version - Update sp2 HwPlatform x64
Microsoft ≫ Windows Server 2008 Version - Update sp2 HwPlatform x86
Microsoft ≫ Windows Server 2008 Version r2 Update sp1 HwPlatform x64
Microsoft ≫ Windows Server 2016 Version < 10.0.14393.7969
Microsoft ≫ Windows Server 2019 Version < 10.0.17763.7136
Microsoft ≫ Windows Server 2022 Version < 10.0.20348.3453
Microsoft ≫ Windows Server 2022 23h2 Version < 10.0.25398.1551
Microsoft ≫ Windows Server 2025 Version < 10.0.26100.3775
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.31% 0.239
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Microsoft 7 1 5.9
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21191
Vendor Advisory