CVE-2026-62721

CVE Enrichment

CVSS: 7.8 HIGH
EPSS: 0.30%
EPSS Percentile: 20.72%
CISA KEV: Not listed

Description

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

Technical Details

CVSS Version: 3.1
CNA / NVD Source: secure@microsoft.com
Published: 12-Aug-2026 00:18
Last Modified: 15-Sep-2026 01:18
EPSS Date: 2026-10-11
CWE: CWE-1220

CVSS Vector


            CVSS:3.1                            AV:L /
                            AC:L /
                            PR:L /
                            UI:N /
                            S:U /
                            C:H /
                            I:H /
                            A:H

Affected Products / Versions

microsoft / windows_10_1607
Version / affected range: * · before (exclusive) 10.0.14393.9418
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*
microsoft / windows_10_1607
Version / affected range: * · before (exclusive) 10.0.14393.9418
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*
microsoft / windows_10_1809
Version / affected range: * · before (exclusive) 10.0.17763.9115
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
microsoft / windows_10_1809
Version / affected range: * · before (exclusive) 10.0.17763.9115
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*
microsoft / windows_10_21h2
Version / affected range: * · before (exclusive) 10.0.19044.7663
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:*
microsoft / windows_10_21h2
Version / affected range: * · before (exclusive) 10.0.19044.7663
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*
microsoft / windows_10_21h2
Version / affected range: * · before (exclusive) 10.0.19044.7663
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:*
microsoft / windows_10_22h2
Version / affected range: * · before (exclusive) 10.0.19045.7663
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:*
microsoft / windows_10_22h2
Version / affected range: * · before (exclusive) 10.0.19045.7663
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:*
microsoft / windows_10_22h2
Version / affected range: * · before (exclusive) 10.0.19045.7663
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:*
microsoft / windows_11_23h2
Version / affected range: * · before (exclusive) 10.0.22631.7517
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:*
microsoft / windows_11_23h2
Version / affected range: * · before (exclusive) 10.0.22631.7517
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:*
microsoft / windows_11_24h2
Version / affected range: * · before (exclusive) 10.0.26100.9106
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:*
microsoft / windows_11_24h2
Version / affected range: * · before (exclusive) 10.0.26100.9106
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:*
microsoft / windows_11_25h2
Version / affected range: * · before (exclusive) 10.0.26200.9106
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:*
microsoft / windows_11_25h2
Version / affected range: * · before (exclusive) 10.0.26200.9106
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:*
microsoft / windows_11_26h1
Version / affected range: * · before (exclusive) 10.0.28000.2704
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*
microsoft / windows_11_26h1
Version / affected range: * · before (exclusive) 10.0.28000.2704
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:*
microsoft / windows_server_2012
Version / affected range: -
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
microsoft / windows_server_2012
Version / affected range: r2
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
microsoft / windows_server_2016
Version / affected range: * · before (exclusive) 10.0.14393.9418
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
microsoft / windows_server_2019
Version / affected range: * · before (exclusive) 10.0.17763.9115
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
microsoft / windows_server_2022
Version / affected range: * · before (exclusive) 10.0.20348.5440
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
microsoft / windows_server_2025
Version / affected range: * · before (exclusive) 10.0.26100.33222
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*

References

secure@microsoft.com

Last enrichment sync: 12-Oct-2026 16:27
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (1)

The Windows 11 update counts as a security update because it covers CVE-2026-62721 and the Windows 11 26H1 also fixes CVE-2026-85921. October 2026 Patch Tuesday Forecast: Office Update Issues and Security Fixes

CVE (4)

Vendors (2)

Products (14)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.