CVE-2025-24054: Microsoft Windows NTLM Hash Disclosure Spoofing Vulnerability

Medium severity, CVSS 5.4. Actively exploited: in CISA KEV since 2025-04-17. EPSS: 58.9% chance of exploitation in the next 30 days.

External control of file name or path in Windows NTLM allows an unauthorized attacker to perform spoofing over a network.

Affected products

• Microsoft Windows 10 1507: before 10.0.10240.20947 (fixed in 10.0.10240.20947)
• Microsoft Windows 10 1607: before 10.0.14393.7876 (fixed in 10.0.14393.7876)
• Microsoft Windows 10 1809: before 10.0.17763.7009 (fixed in 10.0.17763.7009)
• Microsoft Windows 10 21h2: before 10.0.19044.5608 (fixed in 10.0.19044.5608)
• Microsoft Windows 10 22h2: before 10.0.19045.5608 (fixed in 10.0.19045.5608)
• Microsoft Windows 11 22h2: before 10.0.22621.5039 (fixed in 10.0.22621.5039)
• Microsoft Windows 11 23h2: before 10.0.22631.5039 (fixed in 10.0.22631.5039)
• Microsoft Windows 11 24h2: before 10.0.26100.3403 (fixed in 10.0.26100.3403)
• Microsoft Windows Server 2008: version r2 only
• Microsoft Windows Server 2012: affected versions not specified; version r2 only
• Microsoft Windows Server 2016: before 10.0.14393.7876 (fixed in 10.0.14393.7876)
• Microsoft Windows Server 2019: before 10.0.17763.7009 (fixed in 10.0.17763.7009)
• Microsoft Windows Server 2022: before 10.0.20348.3270 (fixed in 10.0.20348.3270)
• Microsoft Windows Server 2022 23h2: before 10.0.25398.1486 (fixed in 10.0.25398.1486)
• Microsoft Windows Server 2025: before 10.0.26100.3403 (fixed in 10.0.26100.3403)

Published 2025-03-11. Last modified 2026-06-17.