CVE-2026-25174

Out-of-bounds read in Windows Extensible File Allocation allows an authorized attacker to elevate privileges locally.

• microsoft windows 10 1607 (< 10.0.14393.8957) • microsoft windows 10 1809 (< 10.0.17763.8511) • microsoft windows 10 21h2 (< 10.0.19044.7058) • microsoft windows 10 22h2 (< 10.0.19045.7058) • microsoft windows 11 23h2 (< 10.0.22631.6783) • microsoft windows 11 24h2 (< 10.0.26100.7979) • microsoft windows 11 25h2 (< 10.0.26200.7979) • microsoft windows 11 26h1 (< 10.0.28000.1719) • microsoft windows server 2012 • microsoft windows server 2012 r2 • microsoft windows server 2016 (< 10.0.14393.8957) • microsoft windows server 2019 (< 10.0.17763.8511) • microsoft windows server 2022 (< 10.0.20348.4830) • microsoft windows server 2022 23h2 (< 10.0.25398.2207) • microsoft windows server 2025 (< 10.0.26100.32463)