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CVE-2025-48799

Windows Update Service Elevation of Privilege Vulnerability

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 10.0.14393.8246, 10.0.17763.7558, 10.0.19044.6093, 10.0.19045.6093, 10.0.22621.5624, and 2 more
3 proofs of concept on GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

Improper link resolution before file access ('link following') in Windows Update Service allows an authorized attacker to elevate privileges locally.

Timeline

  1. CVE published
  2. CISA SSVC assessment

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

  3. Record last updated

Affected versions

  • Microsoft Windows 10 Version 1607

    From 10.0.14393.0 · fixed in 10.0.14393.8246

  • Microsoft Windows 10 Version 1809

    From 10.0.17763.0 · fixed in 10.0.17763.7558

  • Microsoft Windows 10 Version 21H2

    From 10.0.19044.0 · fixed in 10.0.19044.6093

  • Microsoft Windows 10 Version 22H2

    From 10.0.19045.0 · fixed in 10.0.19045.6093

  • Microsoft Windows 11 version 22H2

    From 10.0.22621.0 · fixed in 10.0.22621.5624

  • Microsoft Windows 11 version 22H3

    From 10.0.22631.0 · fixed in 10.0.22631.5624

  • Microsoft Windows 11 Version 23H2

    From 10.0.22631.0 · fixed in 10.0.22631.5624

  • Microsoft Windows 11 Version 24H2

    From 10.0.26100.0 · fixed in 10.0.26100.4652

  • Microsoft Windows Server 2025

    From 10.0.26100.0 · fixed in 10.0.26100.4652

  • Microsoft Windows Server 2025 (Server Core installation)

    From 10.0.26100.0 · fixed in 10.0.26100.4652

References 4

msrc.microsoft.com

GitHub · Wh04m1001/CVE-2025-48799

GitHub · gmh5225/CVE-2025-48799-

GitHub · painoob/CVE-2025-48799