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CVE-2025-33071

Windows KDC Proxy Service (KPSSVC) Remote Code Execution Vulnerability

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 6.2.9200.25522, 6.3.9600.22620, 10.0.14393.8148, 10.0.17763.7434, 10.0.20348.3807, and 2 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

Use after free in Windows KDC Proxy Service (KPSSVC) allows an unauthorized attacker to execute code over a network.

Timeline

  1. CVE published
  2. CISA SSVC assessment

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

  3. Record last updated
  4. EPSS reached 10%

    FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

  • Microsoft Windows Server 2012

    From 6.2.9200.0 · fixed in 6.2.9200.25522

  • Microsoft Windows Server 2012 (Server Core installation)

    From 6.2.9200.0 · fixed in 6.2.9200.25522

  • Microsoft Windows Server 2012 R2

    From 6.3.9600.0 · fixed in 6.3.9600.22620

  • Microsoft Windows Server 2012 R2 (Server Core installation)

    From 6.3.9600.0 · fixed in 6.3.9600.22620

  • Microsoft Windows Server 2016

    From 10.0.14393.0 · fixed in 10.0.14393.8148

  • Microsoft Windows Server 2016 (Server Core installation)

    From 10.0.14393.0 · fixed in 10.0.14393.8148

  • Microsoft Windows Server 2019

    From 10.0.17763.0 · fixed in 10.0.17763.7434

  • Microsoft Windows Server 2019 (Server Core installation)

    From 10.0.17763.0 · fixed in 10.0.17763.7434

  • Microsoft Windows Server 2022

    From 10.0.20348.0 · fixed in 10.0.20348.3807

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

    From 10.0.25398.0 · fixed in 10.0.25398.1665

  • Microsoft Windows Server 2025

    From 10.0.26100.0 · fixed in 10.0.26100.4349

  • Microsoft Windows Server 2025 (Server Core installation)

    From 10.0.26100.0 · fixed in 10.0.26100.4349

References 1

msrc.microsoft.com