HIGH
Windows Update Service Elevation of Privilege Vulnerability
Published Jul 8, 2025
7.8
HIGHCVSS 3.1
EPSS 1.16%
Description
Improper link resolution before file access ('link following') in Windows Update Service allows an authorized attacker to elevate privileges locally.
Affected products
-
Affected
- ≥ 10.0.14393.0, < 10.0.14393.8246
-
Affected
- ≥ 10.0.17763.0, < 10.0.17763.7558
-
Affected
- ≥ 10.0.19044.0, < 10.0.19044.6093
-
Affected
- ≥ 10.0.19045.0, < 10.0.19045.6093
-
Affected
- ≥ 10.0.22631.0, < 10.0.22631.5624
-
Affected
- ≥ 10.0.26100.0, < 10.0.26100.4652
-
Affected
- ≥ 10.0.22621.0, < 10.0.22621.5624
-
Affected
- ≥ 10.0.22631.0, < 10.0.22631.5624
-
Affected
- ≥ 10.0.26100.0, < 10.0.26100.4652
-
Affected
- ≥ 10.0.26100.0, < 10.0.26100.4652
Default status is the baseline for the product. Each version can override it (patched versions can be marked unaffected).
| Vendor | Product | Default status | Versions |
|---|---|---|---|
| Microsoft | Windows 10 Version 1607 | unknown | Affected
|
| Microsoft | Windows 10 Version 1809 | unknown | Affected
|
| Microsoft | Windows 10 Version 21H2 | unknown | Affected
|
| Microsoft | Windows 10 Version 22H2 | unknown | Affected
|
| Microsoft | Windows 11 Version 23H2 | unknown | Affected
|
| Microsoft | Windows 11 Version 24H2 | unknown | Affected
|
| Microsoft | Windows 11 version 22H2 | unknown | Affected
|
| Microsoft | Windows 11 version 22H3 | unknown | Affected
|
| Microsoft | Windows Server 2025 | unknown | Affected
|
| Microsoft | Windows Server 2025 (Server Core installation) | unknown | Affected
|
OR
- < 10.0.14393.8246
- < 10.0.14393.8246
- < 10.0.17763.7558
- < 10.0.17763.7558
- < 10.0.19044.6093
- < 10.0.19045.6093
- < 10.0.22621.5624
- < 10.0.22631.5624
- < 10.0.26100.4652
- < 10.0.26100.4652
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Weaknesses (1)
References (4)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-20603 Advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-48799 vendor-advisorypatchVendor Advisory
- https://www.vicarius.io/vsociety/posts/cve-2025-48799-detection-script-elevation-of-privilege-vulnerability-in-windows-update-service ExploitThird Party Advisory
- https://www.vicarius.io/vsociety/posts/cve-2025-48799-mitigation-script-elevation-of-privilege-vulnerability-in-windows-update-service ExploitMitigationThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-20603 | Advisory | |
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-48799 | vendor-advisorypatchVendor Advisory | |
| https://www.vicarius.io/vsociety/posts/cve-2025-48799-detection-script-elevation-of-privilege-vulnerability-in-windows-update-service | ExploitThird Party Advisory | |
| https://www.vicarius.io/vsociety/posts/cve-2025-48799-mitigation-script-elevation-of-privilege-vulnerability-in-windows-update-service | ExploitMitigationThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner microsoft
Published Jul 8, 2025
Updated Feb 13, 2026
Reserved May 26, 2025
Link CVE-2025-48799
CISA Vulnrichment
Updated Jul 8, 2025
Red Hat
No data
GitHub
No data