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CVE-2025-59284

Windows NTLM Spoofing Vulnerability

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 10.0.22621.6060, 10.0.22631.6060, 10.0.26100.6899, 10.0.26200.6899
1 proof of concept on GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

Exposure of sensitive information to an unauthorized actor in Windows NTLM allows an unauthorized attacker to perform spoofing locally.

Timeline

  1. CVE published
  2. CISA SSVC assessment

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

  3. Record last updated

Affected versions

  • Microsoft Windows 11 version 22H2

    From 10.0.22621.0 · fixed in 10.0.22621.6060

  • Microsoft Windows 11 version 22H3

    From 10.0.22631.0 · fixed in 10.0.22631.6060

  • Microsoft Windows 11 Version 23H2

    From 10.0.22631.0 · fixed in 10.0.22631.6060

  • Microsoft Windows 11 Version 24H2

    From 10.0.26100.0 · fixed in 10.0.26100.6899

  • Microsoft Windows 11 Version 25H2

    From 10.0.26200.0 · fixed in 10.0.26200.6899

  • Microsoft Windows Server 2025

    From 10.0.26100.0 · fixed in 10.0.26100.6899

  • Microsoft Windows Server 2025 (Server Core installation)

    From 10.0.26100.0 · fixed in 10.0.26100.6899

References 2

msrc.microsoft.com

GitHub · lytnc/CVE-2025-59284-PoC