September 19, 2026
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CVE-2026-62721

High7.8Published on August 11, 2026

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

CVSS score7.8 / 10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)CWE-1220
Vendorsmicrosoft

Affected products

VendorsProductVersions
microsoftwindows 10 1607< 10.0.14393.9418
microsoftwindows 10 1809< 10.0.17763.9115
microsoftwindows 10 21h2< 10.0.19044.7663
microsoftwindows 10 22h2< 10.0.19045.7663
microsoftwindows 11 23h2< 10.0.22631.7517
microsoftwindows 11 24h2< 10.0.26100.9106
microsoftwindows 11 25h2< 10.0.26200.9106
microsoftwindows 11 26h1< 10.0.28000.2704
microsoftwindows server 2012-
microsoftwindows server 2016< 10.0.14393.9418
microsoftwindows server 2019< 10.0.17763.9115
microsoftwindows server 2022< 10.0.20348.5440
microsoftwindows server 2025< 10.0.26100.33222

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