Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.
History

Thu, 15 Jan 2026 21:30:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft windows 11 23h2
Microsoft windows Server 2022 23h2
CPEs cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*
Vendors & Products Microsoft windows 11 23h2
Microsoft windows Server 2022 23h2

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

Type Values Removed Values Added
Metrics ssvc

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


Tue, 13 Jan 2026 18:15:00 +0000

Type Values Removed Values Added
Description Use after free in Windows Win32K - ICOMP allows an authorized attacker to elevate privileges locally.
Title Win32k Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft windows 11 23h2
Microsoft windows Server 2022
Microsoft windows Server 23h2
Weaknesses CWE-416
CPEs cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_23h2:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft windows 11 23h2
Microsoft windows Server 2022
Microsoft windows Server 23h2
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/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: 2026-01-13T17:56:38.801Z

Updated: 2026-01-14T04:55:47.697Z

Reserved: 2025-12-04T20:04:16.335Z

Link: CVE-2026-20920

cve-icon Vulnrichment

Updated: 2026-01-13T19:10:40.019Z

cve-icon NVD

Status : Analyzed

Published: 2026-01-13T18:16:18.303

Modified: 2026-01-15T21:16:36.287

Link: CVE-2026-20920

cve-icon Redhat

No data.