CVE-2026-53996

Katalog CVE

CVSS 7.0 · High EPSS 0,13%

Kerentanan Missing Authorization. Skor CVSS 3.1 7.0 (High) menurut vulncheck.com.

Deskripsi (NVD)

NetBSD's hdaudio(4) driver in sys/dev/hdaudio/hdaudio.c contains a missing access control vulnerability that allows unprivileged local attackers to invoke the HDAUDIO_FGRP_SETCONFIG ioctl without elevated permissions by exploiting the absence of an access check on /dev/hdaudioN device nodes. Attackers can repeatedly issue HDAUDIO_FGRP_SETCONFIG from one thread while keeping DMA and IRQs live from a second thread to trigger a use-after-free race condition in hdafg_detach() between stream_stop() and stream_disestablish(), where a latched DMA interrupt dereferences a freed callback pointer, resulting in outcomes ranging from audio-subsystem denial of service and kernel panic to potential local kernel privilege escalation.

Rincian

Terbit di NVD

12 Agustus 2026

Terakhir diubah

24 September 2026

Status NVD

Awaiting Analysis

CVSS 3.1

7.0 (High), sumber vulncheck.com
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-862: Missing Authorization

EPSS (30 hari)

0,13% peluang dieksploitasi; lebih tinggi dari 2,1% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://cvsweb.NetBSD.org/bsdweb.cgi/src/sys/dev/hdaudio/hdaudio.c
• https://gist.github.com/n4sm/c9683ca728ecfada6c726f2a5afb50ed
• https://gnats.netbsd.org/60492
• https://www.vulncheck.com/advisories/netbsd-hdaudio-4-driver-privilege-bypass-use-after-free-via-hdaudio-fgrp-...