Use after free in Windows Program Compatibility Assistant Service allows an authorized attacker to elevate privileges locally.

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Vendors Products
Microsoft Subscribe
Windows 11 23h2 Subscribe
Windows 11 24h2 Subscribe
Windows 11 25h2 Subscribe
Windows 11 26h1 Subscribe
Windows 11 Version 26h2 For Arm64-based Systems Subscribe
Windows Server 2022 Subscribe
Windows Server 2025 Subscribe
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Fixes

Solution

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Workaround

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History

Tue, 13 Oct 2026 19:15:00 +0000

Type Values Removed Values Added
Description Use after free in Windows Program Compatibility Assistant Service allows an authorized attacker to elevate privileges locally.
Title Windows Program Compatibility Assistant Service Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft windows 11 23h2
Microsoft windows 11 24h2
Microsoft windows 11 25h2
Microsoft windows 11 26h1
Microsoft windows 11 Version 26h2 For Arm64-based Systems
Microsoft windows Server 2022
Microsoft windows Server 2025
Weaknesses CWE-416
CPEs cpe:2.3:a:microsoft:windows_11_version_26h2_for_arm64-based_systems:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_11_24H2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_25H2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_26H1:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft windows 11 23h2
Microsoft windows 11 24h2
Microsoft windows 11 25h2
Microsoft windows 11 26h1
Microsoft windows 11 Version 26h2 For Arm64-based Systems
Microsoft windows Server 2022
Microsoft windows Server 2025
References
Metrics cvssV3_1

{'score': 7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-10-13T20:44:26.004Z

Reserved: 2026-08-10T18:36:42.030Z

Link: CVE-2026-72969

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-13T19:19:52.047

Modified: 2026-10-13T19:29:52.750

Link: CVE-2026-72969

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses