CVE-2025-59242 | Microsoft Windows up to Server 2025 Ancillary Function Driver for WinSock heap-based overflow

October 14, 2025 Yanac

A vulnerability marked as critical has been reported in Microsoft Windows. This affects an unknown part of the component Ancillary Function Driver for WinSock. The manipulation leads to heap-based buffer overflow.

This vulnerability is documented as CVE-2025-59242. The attack needs to be performed locally. There is not any exploit available.

To fix this issue, it is recommended to deploy a patch.VulDB Recent EntriesRead More