---
id: CVE-2026-96675
title: >-
  alsa-lib through 1.2.16.1 contains a denial of service vulnerability in the
  multi PCM plugin that fails to validate sparse binding indices before array
  access
summary: >-
  alsa-lib through 1.2.16.1 contains a denial of service vulnerability in the
  multi PCM plugin that fails to validate sparse binding indices before array
  access. Attackers can supply a malicious ALSA configuration file with sparse
  bindings…
severity: low
cvss: 3.3
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'
cwe:
  - CWE-129
  - CWE-125
vendor: ALSA Project
product: alsa-lib
affected:
  - alsa-lib <= 1.2.16.1
published: '2026-09-23'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T21:08:55.030'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-96675'
references:
  - url: 'https://github.com/alsa-project/alsa-lib'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/alsa-project/alsa-lib/blob/v1.2.16.1/src/pcm/pcm_multi.c#L1122-L1131
    label: disclosure@vulncheck.com
  - url: 'https://github.com/alsa-project/alsa-lib/pull/527'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/alsa-lib-through-1.2.16.1-denial-of-service-via-pcm-multi
    label: disclosure@vulncheck.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-96675.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-96675'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2539482'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-96675'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-96675'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
  - score-dispute
epss: 0.00111
epssPercentile: 0.01193
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-23T17:43:25.304056Z'
scores:
  nvd: 3.3
  vendor: 5.5
ingestedAt: '2026-09-23T16:27:22.660Z'
---

## Overview

alsa-lib through 1.2.16.1 contains a denial of service vulnerability in the multi PCM plugin that fails to validate sparse binding indices before array access. Attackers can supply a malicious ALSA configuration file with sparse bindings to trigger an out-of-bounds array read and assertion failure, causing the application to abort.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Hardened Images · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-09-23 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-96675.json)