CVE-2026-100200

CVE-2026-100200 · Windows Update Service Elevation of Privilege Vulnerability

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Use after free in Windows Update Service allows an authorized attacker to elevate privileges locally.

CVSS 7.0 · High · EPSS 0.3% · Fix available

Affected products and versions

windows 11 version 23h2
Versions
- ≥ 10.0.22631.0, < 10.0.22631.7652: Affected (custom)
Update to 10.0.22631.7652
windows 11 version 24h2
Versions
- ≥ 10.0.26100.0, < 10.0.26100.9711: Affected (custom)
Update to 10.0.26100.9711
windows 11 version 25h2
Versions
- ≥ 10.0.26200.0, < 10.0.26200.9711: Affected (custom)
Update to 10.0.26200.9711
windows 11 version 26h1
Versions
- ≥ 10.0.28000.0, < 10.0.28000.3231: Affected (custom)
Update to 10.0.28000.3231
windows 11 version 26h2
Versions
- ≥ 10.0.26300.0, < 10.0.26300.9711: Affected (custom)
Update to 10.0.26300.9711
windows server 2025
Versions
- ≥ 10.0.26100.0, < 10.0.26100.33650: Affected (custom)
Update to 10.0.26100.33650
windows server 2025 (server core installation)
Versions
- ≥ 10.0.26100.0, < 10.0.26100.33650: Affected (custom)
Update to 10.0.26100.33650