high7.5
CVE-2026-105009
Incorrect default permissions in Windows Server Update Service allows an authorized attacker to elevate privileges locally.
Impact
Incorrect default permissions in Windows Server Update Service allows an authorized attacker to elevate privileges locally.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Windows Server 2019 | from 10.0.17763.0 before 10.0.17763.9376 |
| Microsoft | Windows Server 2025 (Server Core Installation) | from 10.0.26100.0 before 10.0.26100.33650 |
| Microsoft | Windows Server 2022 | from 10.0.20348.0 before 10.0.20348.5761 |
| Microsoft | Windows Server 2016 (Server Core Installation) | from 10.0.14393.0 before 10.0.14393.9612 |
| Microsoft | Windows Server 2012 (Server Core Installation) | from 6.2.9200.0 before 6.2.9200.26434 |
| Microsoft | Windows Server 2012 | from 6.2.9200.0 before 6.2.9200.26434 |
| Microsoft | Windows Server 2012 R2 (Server Core Installation) | from 6.3.9600.0 before 6.3.9600.23470 |
| Microsoft | Windows Server 2012 R2 | from 6.3.9600.0 before 6.3.9600.23470 |
| Microsoft | Windows Server 2025 | from 10.0.26100.0 before 10.0.26100.33650 |
| Microsoft | Windows Server 2019 (Server Core Installation) | from 10.0.17763.0 before 10.0.17763.9376 |
| Microsoft | Windows Server 2016 | from 10.0.14393.0 before 10.0.14393.9612 |
| Microsoft | Windows Server 2012 | All versions Version r2 |
| Microsoft | Windows Server 2016 | before 10.0.14393.9612 |
| Microsoft | Windows Server 2019 | before 10.0.17763.9376 |
| Microsoft | Windows Server 2022 | before 10.0.20348.5761 |
| Microsoft | Windows Server 2025 | before 10.0.26100.33650 |