high7.8
CVE-2025-48799
Improper link resolution before file access ('link following') in Windows Update Service allows an authorized attacker to elevate privileges locally.
Impact
Improper link resolution before file access ('link following') in Windows Update Service allows an authorized attacker to elevate privileges locally.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Windows 10 1607 | before 10.0.14393.8246 |
| Microsoft | Windows 10 1809 | before 10.0.17763.7558 |
| Microsoft | Windows 10 21h2 | before 10.0.19044.6093 |
| Microsoft | Windows 10 22h2 | before 10.0.19045.6093 |
| Microsoft | Windows 11 22h2 | before 10.0.22621.5624 |
| Microsoft | Windows 11 23h2 | before 10.0.22631.5624 |
| Microsoft | Windows 11 24h2 | before 10.0.26100.4652 |
| Microsoft | Windows Server 2025 | before 10.0.26100.4652 |
Weakness classification
References
- NVD record
- CVE.org record
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-48799
- https://www.vicarius.io/vsociety/posts/cve-2025-48799-detection-script-elevation-of-privilege-vulnerability-in-windows-update-service
- https://www.vicarius.io/vsociety/posts/cve-2025-48799-mitigation-script-elevation-of-privilege-vulnerability-in-windows-update-service