CVE-2025-59188: Microsoft Windows Server 2012

Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Exposure of sensitive information to an unauthorized actor in Windows Failover Cluster allows an authorized attacker to disclose information locally.

Affected products

• Microsoft Windows Server 2012: version r2 only
• Microsoft Windows Server 2016: before 10.0.14393.8519 (fixed in 10.0.14393.8519)
• Microsoft Windows Server 2019: before 10.0.17763.7919 (fixed in 10.0.17763.7919)
• Microsoft Windows Server 2022: before 10.0.20348.4294 (fixed in 10.0.20348.4294)
• Microsoft Windows Server 2022 23h2: before 10.0.25398.1913 (fixed in 10.0.25398.1913)
• Microsoft Windows Server 2025: before 10.0.26100.6899 (fixed in 10.0.26100.6899)

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