CVE-2026-41088

Published: May 12, 2026Modified: Jun 17, 2026

7.8

Vector

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

Exploitability: 1.8 / Impact: 5.9

Source: secure@microsoft.com (Secondary)

Description

Access of resource using incompatible type ('type confusion') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

Affected (17)

Products: Microsoft: Windows 10 21h2, Windows 10 22h2, Windows 11 23h2, Windows 11 24h2, Windows 11 25h2, Windows 11 26h1, Windows Server 2022, Windows Server 2022 23h2, Windows Server 2025

9 products

Windows Server 2022 23h2

Windows Server 2025

Configuration A

17 vulnerable

Vulnerable Software	Affected Versions
Microsoft Windows 10 21h2	version < 10.0.19044.7291
Microsoft Windows 10 21h2	version < 10.0.19044.7291
Microsoft Windows 10 21h2	version < 10.0.19044.7291
Microsoft Windows 10 22h2	version < 10.0.19045.7291
Microsoft Windows 10 22h2	version < 10.0.19045.7291
Microsoft Windows 10 22h2	version < 10.0.19045.7291
Microsoft Windows 11 23h2	version < 10.0.22631.7079
Microsoft Windows 11 23h2	version < 10.0.22631.7079
Microsoft Windows 11 24h2	version < 10.0.26100.8390
Microsoft Windows 11 24h2	version < 10.0.26100.8390
Microsoft Windows 11 25h2	version < 10.0.26200.8390
Microsoft Windows 11 25h2	version < 10.0.26200.8390
Microsoft Windows 11 26h1	version < 10.0.28000.2113
Microsoft Windows 11 26h1	version < 10.0.28000.2113
Microsoft Windows Server 2022	version < 10.0.20348.5074
Microsoft Windows Server 2022 23h2	version < 10.0.25398.2330
Microsoft Windows Server 2025	version < 10.0.26100.32772

Related CWEs

CWE-73

External Control of File Name or Path

The product allows user input to control or influence paths or file names that are used in filesystem operations.

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41088

Source: secure@microsoft.com

Vendor Advisory

Timeline

No history available yet.