CVE-2025-24997: Microsoft Windows 10 21h2

Medium severity, CVSS 4.4. EPSS: 0.6% chance of exploitation in the next 30 days.

Null pointer dereference in Windows Kernel Memory allows an authorized attacker to deny service locally.

Affected products

• 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 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.