CVE-2026-25170

Published: Mar 10, 2026Modified: Jun 17, 2026

7.0

Vector

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

Exploitability: 1.0 / Impact: 5.9

Source: secure@microsoft.com (Secondary)

Description

Use after free in Windows Hyper-V allows an authorized attacker to elevate privileges locally.

Affected (11)

Products: Microsoft: Windows 11 23h2, Windows 11 24h2, Windows 11 25h2, Windows 11 26h1, Windows Server 2022, Windows Server 2022 23h2, Windows Server 2025

7 products

Windows 11 23h2

Windows 11 24h2

Windows 11 25h2

Windows 11 26h1

Windows Server 2022

Windows Server 2022 23h2

Windows Server 2025

Configuration A

11 vulnerable

Vulnerable Software	Affected Versions
Microsoft Windows 11 23h2	version < 10.0.22631.6783
Microsoft Windows 11 23h2	version < 10.0.22631.6783
Microsoft Windows 11 24h2	version < 10.0.26100.7979
Microsoft Windows 11 24h2	version < 10.0.26100.7979
Microsoft Windows 11 25h2	version < 10.0.26200.7979
Microsoft Windows 11 25h2	version < 10.0.26200.7979
Microsoft Windows 11 26h1	version < 10.0.28000.1719
Microsoft Windows 11 26h1	version < 10.0.28000.1719
Microsoft Windows Server 2022	version < 10.0.20348.4830
Microsoft Windows Server 2022 23h2	version < 10.0.25398.2207
Microsoft Windows Server 2025	version < 10.0.26100.32463

Related CWEs

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-25170

Source: secure@microsoft.com

Vendor Advisory

Timeline

No history available yet.