CVE-2025-59278HighCVSS 7.8

Windows Authentication Elevation of Privilege Vulnerability

Published
October 14, 2025
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2025-59278 →

📋 Description

Improper validation of specified type of input in Windows Authentication Methods allows an authorized attacker to elevate privileges locally.

🎯 Affected products37

  • Windows 10 Version 1607 for 32-bit Systems
  • Windows 10 Version 1607 for x64-based Systems
  • Windows 10 Version 1809 for 32-bit Systems
  • Windows 10 Version 1809 for x64-based Systems
  • Windows 10 Version 21H2 for 32-bit Systems
  • Windows 10 Version 21H2 for ARM64-based Systems
  • Windows 10 Version 21H2 for x64-based Systems
  • Windows 10 Version 22H2 for 32-bit Systems
  • Windows 10 Version 22H2 for ARM64-based Systems
  • Windows 10 Version 22H2 for x64-based Systems
  • Windows 10 for 32-bit Systems
  • Windows 10 for x64-based Systems
  • Windows 11 Version 22H2 for ARM64-based Systems
  • Windows 11 Version 22H2 for x64-based Systems
  • Windows 11 Version 23H2 for ARM64-based Systems
  • Windows 11 Version 23H2 for x64-based Systems
  • Windows 11 Version 24H2 for ARM64-based Systems
  • Windows 11 Version 24H2 for x64-based Systems
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1
  • Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
  • Windows Server 2008 for 32-bit Systems Service Pack 2
  • Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
  • Windows Server 2008 for x64-based Systems Service Pack 2
  • Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
  • Windows Server 2012
  • Windows Server 2012 (Server Core installation)
  • Windows Server 2012 R2
  • Windows Server 2012 R2 (Server Core installation)
  • Windows Server 2016
  • Windows Server 2016 (Server Core installation)
  • +7 more not shown

✅ Remediation

KB5066586 (Security Update) — fixed build 10.0.17763.7919 KB5066782 (Security Update) — fixed build 10.0.20348.4294 KB5066791 (Security Update) — fixed build 10.0.19044.6456 KB5066793 (Security Update) — fixed build 10.0.22621.6060 KB5066791 (Security Update) — fixed build 10.0.19045.6456 KB5066835 (Security Update) — fixed build 10.0.26100.6899 KB5066793 (Security Update) — fixed build 10.0.22631.6060 KB5066780 (Security Update) — fixed build 10.0.25398.1913 KB5066837 (Security Update) — fixed build 10.0.10240.21161 KB5066836 (Security Update) — fixed build 10.0.14393.8519 KB5066874 (Monthly Rollup) — fixed build 6.0.6003.23571 KB5066877 (Security Only) — fixed build 6.0.6003.23571 KB5066872 (Monthly Rollup) — fixed build 6.1.7601.27974 KB5066876 (Security Only) — fixed build 6.1.7601.27974 KB5066875 (Monthly Rollup) — fixed build 6.2.9200.25722 KB5066873 (Monthly Rollup) — fixed build 6.3.9600.22824

🔗 References (29)