External Control of File Name or Path in Windows and Windows Server - CVE-2026-50462
Published: July 16, 2026
Vulnerability identifier: #VU137879
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-50462
CWE-ID: CWE-73
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Windows
Windows Server
Windows
Windows Server
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to external control of file name or path in Windows Ancillary Function Driver for WinSock, which leads to security restrictions bypass and privilege escalation.
How to mitigate CVE-2026-50462
Install updates from vendor's website.