CVE-2026-50418

Published: Jul 14, 2026Modified: Jul 22, 2026

6.1

Vector

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

Exploitability: 1.8 / Impact: 4.2

Source: NVD

Description

Improper access control in Windows System allows an unauthorized attacker to bypass a security feature locally.

Affected (8)

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

5 products

Windows 11 24h2

Windows 11 25h2

Windows 11 26h1

Windows Server 2022

Windows Server 2025

Configuration A

8 vulnerable

Vulnerable Software	Affected Versions
Microsoft Windows 11 24h2	Before 10.0.26100.8875
Microsoft Windows 11 24h2	Before 10.0.26100.8875
Microsoft Windows 11 25h2	Before 10.0.26200.8875
Microsoft Windows 11 25h2	Before 10.0.26200.8875
Microsoft Windows 11 26h1	Before 10.0.28000.2525
Microsoft Windows 11 26h1	Before 10.0.28000.2269
Microsoft Windows Server 2022	Before 10.0.20348.5386
Microsoft Windows Server 2025	Before 10.0.26100.33158

Related CWEs

Improper Access Control

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50418

Source: secure@microsoft.com

PatchVendor Advisory

Timeline

No history available yet.