Use-after-free in Windows and Windows Server - CVE-2026-50340

 

Use-after-free in Windows and Windows Server - CVE-2026-50340

Published: July 16, 2026


Vulnerability identifier: #VU137914
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-50340
CWE-ID: CWE-416
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 attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in Windows Runtime. A remote user can gain elevated privileges on the target system.


How to mitigate CVE-2026-50340

Install updates from vendor's website.

Sources