CVE-2026-53996 | NetBSD up to 11 hdaudio hdaudio.c hdafg_detach use after free

A vulnerability has been found in NetBSD up to 11 and classified as very critical. Affected by this vulnerability is the function hdafg_detach of the file sys/dev/hdaudio/hdaudio.c of the component hdaudio. This manipulation causes use after free.

This vulnerability appears as CVE-2026-53996. The attack requires local access. There is no available exploit.