CVE-2025-21191

HIGH

Microsoft Windows 10 1507 < 10.0.10240.20978 - TOCTOU Race Condition

Title source: rule
STIX 2.1

Description

Time-of-check time-of-use (toctou) race condition in Windows Local Security Authority (LSA) allows an authorized attacker to elevate privileges locally.

References (1)

Scores

CVSS v3 7.0
EPSS 0.0019
EPSS Percentile 40.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-367
Status published
Products (17)
microsoft/windows_10_1507 < 10.0.10240.20978 (2 CPE variants)
microsoft/windows_10_1607 < 10.0.14393.7969 (2 CPE variants)
microsoft/windows_10_1809 < 10.0.17763.7136 (2 CPE variants)
microsoft/windows_10_21h2 < 10.0.19044.5737
microsoft/windows_10_22h2 < 10.0.19045.5737
microsoft/windows_11_22h2 < 10.0.22621.5189
microsoft/windows_11_23h2 < 10.0.22631.5189
microsoft/windows_11_24h2 < 10.0.26100.3775
microsoft/windows_server_2008 (2 CPE variants)
microsoft/windows_server_2008 r2 sp1
... and 7 more
Published Apr 08, 2025
Tracked Since Feb 18, 2026