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7.0
Windows Ancillary Function Driver for WinSock Privilege Escalation
CVE-2026-32073
Summary
An attacker with authorized access to a Windows system can potentially gain elevated privileges by exploiting a flaw in the Windows Ancillary Function Driver for WinSock. This could allow the attacker to perform actions they shouldn't be able to do on the system. To protect against this, ensure all systems are running the latest Windows updates.
Original title
Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
Original description
Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
nvd CVSS3.1
7.0
Vulnerability type
CWE-416
Use After Free
Published: 14 Apr 2026 · Updated: 14 Apr 2026 · First seen: 14 Apr 2026