Double free in Windows and Windows Server - CVE-2026-50685

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Main Vulnerability Database Vulnerabilities #VU138102

Double free in Windows and Windows Server - CVE-2026-50685

Published: July 17, 2026


Vulnerability identifier: #VU138102
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-2026-50685
CWE-ID: CWE-415
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 arbitrary code.

The vulnerability exists due to double free in Windows DHCP Server when handling network requests. A remote user can send crafted requests to execute arbitrary code.


How to mitigate CVE-2026-50685

Install security update from vendor's website.

Sources