CVE-2026-50462 Microsoft CVE debrief

Who should care

System administrators and users of Windows operating systems should be aware of this vulnerability and apply the necessary patches to prevent privilege escalation attacks. Security teams and vulnerability management teams should prioritize patching this vulnerability due to its HIGH severity and potential impact on system security.

Technical summary

The vulnerability is caused by external control of file name or path in Windows Ancillary Function Driver for WinSock, allowing an authorized attacker to elevate privileges locally. The vulnerability has a CVSS score of 7.8 and is classified as HIGH severity. Affected systems should be patched or mitigated according to vendor guidance. Additional security measures, such as monitoring system logs, are recommended to prevent local privilege escalation attacks.

Defensive priority

High priority should be given to patching this vulnerability, as it allows for local privilege escalation. Additional security measures, such as monitoring system logs and implementing compensating controls, are recommended to prevent local privilege escalation attacks.

Recommended defensive actions

• Apply the patch released by Microsoft
• Ensure all Windows operating systems are up-to-date
• Monitor system logs for suspicious activity
• Implement additional security measures to prevent local privilege escalation attacks
• Review compensating controls for exposed systems while remediation is scheduled and verified

Evidence notes

The CVE record was published on 2026-07-14T18:17:51.497Z and was last modified on 2026-07-21T03:33:21.367Z. The NVD entry is currently Analyzed. This vulnerability affects Windows Ancillary Function Driver for WinSock, allowing an authorized attacker to elevate privileges locally. The CVE record and NVD entry provide details on the vulnerability, but additional verification is recommended to ensure accurate scope and impact assessment.

Official resources