CVE-2026-45258 | FreeBSD Kernel Memory /dev/dsp dsp_mmap_single out-of-bounds

A vulnerability, which was classified as critical, has been found in FreeBSD. Affected by this vulnerability is the function dsp_mmap_single of the file /dev/dsp of the component Kernel Memory Handler. This manipulation causes out-of-bounds read.

This vulnerability appears as CVE-2026-45258. The attack requires local access. There is no available exploit.

It is advisable to upgrade the affected component.