CVE-2025-26647HighCVSS 8.8

Windows Kerberos Elevation of Privilege Vulnerability

Published
April 8, 2025
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2025-26647 →

📋 Description

Improper input validation in Windows Kerberos allows an authorized attacker to elevate privileges over a network.

🎯 Affected products19

  • 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)
  • Windows Server 2019
  • Windows Server 2019 (Server Core installation)
  • Windows Server 2022
  • Windows Server 2022 (Server Core installation)
  • Windows Server 2022, 23H2 Edition (Server Core installation)
  • Windows Server 2025
  • Windows Server 2025 (Server Core installation)

✅ Remediation

KB5055519 (Security Update) — fixed build 10.0.17763.7136 KB5055526 (Security Update) — fixed build 10.0.20348.3453 KB5055523 (Security Update) — fixed build 10.0.26100.3775 KB5055527 (Security Update) — fixed build 10.0.25398.1551 KB5055521 (Security Update) — fixed build 10.0.14393.7969 KB5055609 (Monthly Rollup) — fixed build 6.0.6003.23220 KB5055596 (Security Only) — fixed build 6.0.6003.23220 KB5055561 (Monthly Rollup) — fixed build 6.1.7601.27670 KB5055570 (Security Only) — fixed build 6.1.7601.27670 KB5055581 (Monthly Rollup) — fixed build 6.2.9200.25423 KB5055557 (Monthly Rollup) — fixed build 6.3.9600.22523

🔗 References (23)