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High MSRC-CVE-2026-62721 1 CVE

Windows User-Mode Power Service (UMPS) Elevation of Privilege Vulnerability

Published Aug 11, 2026 · Updated Sep 14, 2026 · Revision 3

Vendor: Microsoft

Summary

Impact: Elevation of Privilege. Microsoft rating: Important. Not known to be exploited — Exploitation More Likely. Customer action: Required.

Details

What privileges could be gained by an attacker who successfully exploited this vulnerability?
An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

Security updates
10.0.17763.9121 — https://support.microsoft.com/help/5120238
10.0.20348.5499 — https://support.microsoft.com/help/5120242
10.0.20348.5440 — https://support.microsoft.com/help/5120229
10.0.19044.7663 — https://support.microsoft.com/help/5120249
10.0.26100.33296 — https://support.microsoft.com/help/5120233
10.0.26100.33222 — https://support.microsoft.com/help/5120228
10.0.26200.9457 — https://support.microsoft.com/help/5129195
10.0.26200.9448 — https://support.microsoft.com/help/5129241
10.0.22631.7517 — https://support.microsoft.com/help/5120240
10.0.28000.2956 — https://support.microsoft.com/help/5129194
10.0.14393.9418 — https://support.microsoft.com/help/5120418
6.2.9200.26280 — https://support.microsoft.com/help/5120386
6.3.9600.23338 — https://support.microsoft.com/help/5120385

Vulnerabilities 1

Revision history

  1. #3

    The CVE was updated with links to security updates for Windows 11, version 26H1, 25H2, and 24H2 to address a missed fix. Microsoft recommends installing these updates as soon as possible.

  2. #2

    Updated an acknowledgement. This is an informational change only.

  3. #1

    Information published.

References