CVE WatchSep 8, 2026

CVE-2026-50349

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Ancillary Function Driver for WinSock

CVSS

7.0

High

EPSS

—

KEV

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Exploit Today

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0-100

Published: Sep 8, 2026 · Last modified: Sep 8, 2026 · CWE-362 · CWE-416

EPSS · 30d

Not enough EPSS history yet.

Technical 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.

Official references

msrc.microsoft.comhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50349

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