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7.8
Windows Ancillary Function Driver for WinSock Privilege Escalation
CVE-2026-26168
Summary
An issue with how Windows manages networking functions can allow an attacker with local access to gain higher-level access to the system. This could potentially let an attacker do things they shouldn't be able to do. To stay secure, ensure you have the latest updates installed for your Windows systems.
Original title
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges loca...
Original 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.
nvd CVSS3.1
7.8
Vulnerability type
CWE-362
Race Condition
CWE-416
Use After Free
Published: 14 Apr 2026 · Updated: 14 Apr 2026 · First seen: 14 Apr 2026