CVE-2025-21204

Improper link resolution before file access ('link following') in Windows Update Stack allows an authorized attacker to elevate privileges locally.

• microsoft windows 10 1507 (< 10.0.10240.20978) • microsoft windows 10 1607 (< 10.0.14393.7969) • microsoft windows 10 1809 (< 10.0.17763.7136) • 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 • microsoft windows server 2008 r2 • microsoft windows server 2012 • microsoft windows server 2012 r2 • microsoft windows server 2016 (< 10.0.14393.7969) • microsoft windows server 2019 (< 10.0.17763.7136) • microsoft windows server 2022 (< 10.0.20348.3453) • microsoft windows server 2022 23h2 (< 10.0.25398.1551) • microsoft windows server 2025 (< 10.0.26100.3775)