CVE-2025-59284: Microsoft Windows 11 22h2

Medium severity, CVSS 5.5. EPSS: 1% chance of exploitation in the next 30 days.

Exposure of sensitive information to an unauthorized actor in Windows NTLM allows an unauthorized attacker to perform spoofing locally.

Affected products

• Microsoft Windows 11 22h2: before 10.0.22621.6060 (fixed in 10.0.22621.6060)
• Microsoft Windows 11 23h2: before 10.0.22631.6060 (fixed in 10.0.22631.6060)
• Microsoft Windows 11 24h2: before 10.0.26100.6899 (fixed in 10.0.26100.6899)
• Microsoft Windows 11 25h2: before 10.0.26200.6899 (fixed in 10.0.26200.6899)
• Microsoft Windows Server 2025: before 10.0.26100.6899 (fixed in 10.0.26100.6899)

Published 2025-10-14. Last modified 2026-06-17.