CVE-2026-49417

Katalog CVE

CVSS 7.0 · High EPSS 0,13%

Kerentanan Use After Free pada freebsd. Skor CVSS 3.1 7.0 (High) menurut CISA ADP.

Deskripsi (NVD)

Second, the audio buffer backing a mapping could be freed when the device was closed even though the mapping remained valid. The freed memory could then be reused elsewhere while still accessible through the stale mapping. The /dev/dsp device nodes are world-accessible by default. On a system with an audio device, either issue allows an unprivileged local user to read and write kernel memory, which can be used to escalate privileges, potentially gaining full control of the affected system. At a minimum, an attacker can crash the kernel, resulting in a Denial of Service (DoS).

Rincian

Terbit di NVD

27 Juni 2026

Terakhir diubah

1 Juli 2026

Status NVD

Analyzed

CVSS 3.1

7.0 (High), sumber CISA ADP
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-416: Use After Free

EPSS (30 hari)

0,13% peluang dieksploitasi; lebih tinggi dari 1,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://security.freebsd.org/advisories/FreeBSD-SA-26:27.sound.asc advisory vendor