Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
History

Fri, 23 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft windows 11 24h2
Microsoft windows 11 25h2
Microsoft windows 11 26h1
Microsoft windows 11 26h2
Microsoft windows Server 2025 (server Core Installation)
Vendors & Products Microsoft windows 11 24h2
Microsoft windows 11 25h2
Microsoft windows 11 26h1
Microsoft windows 11 26h2
Microsoft windows Server 2025 (server Core Installation)

Wed, 14 Oct 2026 00:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


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

Type Values Removed Values Added
Description Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
Title Windows Kernel Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft windows 11 24h2
Microsoft windows 11 25h2
Microsoft windows 11 26h1
Microsoft windows 11 Version 26h2 For Arm64-based Systems
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_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_2025:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft windows 11 24h2
Microsoft windows 11 25h2
Microsoft windows 11 26h1
Microsoft windows 11 Version 26h2 For Arm64-based Systems
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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published: 2026-10-13T19:01:06.626Z

Updated: 2026-10-23T22:29:16.766Z

Reserved: 2026-09-09T21:53:00.398Z

Link: CVE-2026-88139

cve-icon Vulnrichment

Updated: 2026-10-13T19:55:10.323Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-13T19:21:33.387

Modified: 2026-10-13T21:19:49.187

Link: CVE-2026-88139

cve-icon Redhat

No data.