CVE-2026-33099 | Microsoft Windows up to Server 2022 23H2 Ancillary Function Driver for WinSock use after free

April 14, 2026 Yanac

A vulnerability, which was classified as critical, was found in Microsoft Windows. Affected by this issue is some unknown functionality of the component Ancillary Function Driver for WinSock. The manipulation results in use after free.

This vulnerability is cataloged as CVE-2026-33099. The attack must be initiated from a local position. There is no exploit available.

You should upgrade the affected component.VulDB Recent EntriesRead More