Windows 10 Version 1607 vulnerability

Insufficient granularity of access control in User-Mode Power Service (UMPS) allows an authorized attacker to elevate privileges locally.

Published 11 Aug 2026Updated 14 Sep 20261 sources
CVSS 7.8

What happened

Insufficient granularity of access control in User-Mode Power Service (UMPS) allows an authorized attacker to elevate privileges locally.

Affected versions

Windows 10 Version 1607: 10.0.14393.0 through before 10.0.14393.9418 (custom); 10.0.17763.0 through before 10.0.17763.9121 (custom); 10.0.19044.0 through before 10.0.19044.7663 (custom); 10.0.19045.0 through before 10.0.19045.7663 (custom); 10.0.22631.0 through before 10.0.22631.7517 (custom); 10.0.26100.0 through before 10.0.26100.9457 (custom); 10.0.26200.0 through before 10.0.26200.9457 (custom); 10.0.28000.0 through before 10.0.28000.2956 (custom); 6.2.9200.0 through before 6.2.9200.26280 (custom); 6.3.9600.0 through before 6.3.9600.23338 (custom); 10.0.20348.0 through before 10.0.20348.5499 (custom); 10.0.26100.0 through before 10.0.26100.33296 (custom) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

  • Apply vendor-provided updates or mitigations.
  • Review affected product exposure and access logs.

Public PoC references

No public PoC reference has passed the current publication threshold.