CVE-2026-34345

HIGH CVSS 7.0 View on NVD ↗

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34345

Published: May 12, 2026 18:17 UTC Modified: May 13, 2026 15:34 UTC