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CVE-2026-27912

Windows Kerberos Elevation of Privilege Vulnerability

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 6.2.9200.26026, 6.3.9600.23132, 10.0.14393.9060, 10.0.17763.8644, 10.0.20348.5020, and 2 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

Improper authorization in Windows Kerberos allows an authorized attacker to elevate privileges over an adjacent network.

Timeline

  1. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  2. CVE published
  3. Record last updated

Affected versions

  • Microsoft Windows Server 2012

    From 6.2.9200.0 · fixed in 6.2.9200.26026

  • Microsoft Windows Server 2012 (Server Core installation)

    From 6.2.9200.0 · fixed in 6.2.9200.26026

  • Microsoft Windows Server 2012 R2

    From 6.3.9600.0 · fixed in 6.3.9600.23132

  • Microsoft Windows Server 2012 R2 (Server Core installation)

    From 6.3.9600.0 · fixed in 6.3.9600.23132

  • Microsoft Windows Server 2016

    From 10.0.14393.0 · fixed in 10.0.14393.9060

  • Microsoft Windows Server 2016 (Server Core installation)

    From 10.0.14393.0 · fixed in 10.0.14393.9060

  • Microsoft Windows Server 2019

    From 10.0.17763.0 · fixed in 10.0.17763.8644

  • Microsoft Windows Server 2019 (Server Core installation)

    From 10.0.17763.0 · fixed in 10.0.17763.8644

  • Microsoft Windows Server 2022

    From 10.0.20348.0 · fixed in 10.0.20348.5020

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

    From 10.0.25398.0 · fixed in 10.0.25398.2274

  • Microsoft Windows Server 2025

    From 10.0.26100.0 · fixed in 10.0.26100.32690

  • Microsoft Windows Server 2025 (Server Core installation)

    From 10.0.26100.0 · fixed in 10.0.26100.32690

References 1

msrc.microsoft.com