Aug 2026: Windows User-Mode Power Service (UMPS) Elevation of Privilege Vulnerability
CVE-2026-62721 Published on August 11, 2026
Windows User-Mode Power Service (UMPS) Elevation of Privilege Vulnerability
Insufficient granularity of access control in User-Mode Power Service (UMPS) allows an authorized attacker to elevate privileges locally.
Weakness Type
Insufficient Granularity of Access Control
The product implements access controls via a policy or other feature with the intention to disable or restrict accesses (reads and/or writes) to assets in a system from untrusted agents. However, implemented access controls lack required granularity, which renders the control policy too broad because it allows accesses from unauthorized agents to the security-sensitive assets.
Products Associated with CVE-2026-62721
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Affected Versions
Microsoft Windows 10 Version 1607:- Version 10.0.14393.0 and below 10.0.14393.9418 is affected.
- Version 10.0.17763.0 and below 10.0.17763.9115 is affected.
- Version 10.0.19044.0 and below 10.0.19044.7663 is affected.
- Version 10.0.19045.0 and below 10.0.19045.7663 is affected.
- Version 10.0.22631.0 and below 10.0.22631.7517 is affected.
- Version 10.0.22631.0 and below 10.0.22631.7517 is affected.
- Version 10.0.26100.0 and below 10.0.26100.9168 is affected.
- Version 10.0.26200.0 and below 10.0.26200.9168 is affected.
- Version 10.0.28000.0 and below 10.0.28000.2704 is affected.
- Version 6.2.9200.0 and below 6.2.9200.26280 is affected.
- Version 6.2.9200.0 and below 6.2.9200.26280 is affected.
- Version 6.3.9600.0 and below 6.3.9600.23338 is affected.
- Version 6.3.9600.0 and below 6.3.9600.23338 is affected.
- Version 10.0.14393.0 and below 10.0.14393.9418 is affected.
- Version 10.0.14393.0 and below 10.0.14393.9418 is affected.
- Version 10.0.17763.0 and below 10.0.17763.9115 is affected.
- Version 10.0.17763.0 and below 10.0.17763.9115 is affected.
- Version 10.0.20348.0 and below 10.0.20348.5499 is affected.
- Version 10.0.26100.0 and below 10.0.26100.33296 is affected.
- Version 10.0.26100.0 and below 10.0.26100.33296 is affected.