CVE-2025-59258: Microsoft Windows Server 2012

Medium severity, CVSS 6.2. EPSS: 0.6% chance of exploitation in the next 30 days.

Insertion of sensitive information into log file in Active Directory Federation Services allows an unauthorized attacker to disclose information locally.

Affected products

• Microsoft Windows Server 2012: affected versions not specified; version r2 only
• Microsoft Windows Server 2016: up to and including 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: up to and including 10.0.26100.6899

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