CVE-2026-26165

HighCVSS 7.0/10Last modified Oct 26, 2026

Description

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

Metrics

CVSS 3.1 7.0/10CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

Vendor	Product	Versions
Microsoft	Windows 11 version 23H2	>= 10.0.22631.0, < 10.0.22631.6936
Microsoft	Windows 11 Version 23H2	>= 10.0.22631.0, < 10.0.22631.6936
Microsoft	Windows 11 Version 24H2	>= 10.0.26100.0, < 10.0.26100.8246
Microsoft	Windows 11 Version 25H2	>= 10.0.26200.0, < 10.0.26200.8246
Microsoft	Windows 11 version 26H1	>= 10.0.28000.0, < 10.0.28000.1836
Microsoft	Windows Server 2022	>= 10.0.20348.0, < 10.0.20348.5020
Microsoft	Windows Server 2022, 23H2 Edition (Server Core installation)	>= 10.0.25398.0, < 10.0.25398.2274
Microsoft	Windows Server 2025	>= 10.0.26100.0, < 10.0.26100.32690
Microsoft	Windows Server 2025 (Server Core installation)	>= 10.0.26100.0, < 10.0.26100.32690

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26165Vendor Advisory

Timeline

Published: Apr 14, 2026
Last modified: Oct 26, 2026
NVD status: Analyzed

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