Improper access control in Windows and Windows Server - CVE-2026-50502

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Main Vulnerability Database Vulnerabilities #VU138063

Improper access control in Windows and Windows Server - CVE-2026-50502

Published: July 17, 2026


Vulnerability identifier: #VU138063
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-50502
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Microsoft
Affected software:
Windows
Windows Server

Detailed vulnerability description

The vulnerability allows a remote user to execute code.

The vulnerability exists due to improper access control in Windows Event Logging Service when handling network requests. A remote user can send a crafted request to execute code.


How to mitigate CVE-2026-50502

Install security update from vendor's website.

Sources