Vulnerability in Alsa Project Alsa-Lib
CVE-2026-96675
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.001 (1.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/alsa-project/alsa-lib/pull/527 (issue-tracking, patch)
- github.com/alsa-project/alsa-lib/blob/v1.2.16.1/src/pcm/pcm_multi.c (technical-description)
- github.com/alsa-project/alsa-lib (product)
- www.vulncheck.com/advisories/alsa-lib-through-1.2.16.1-denial-of-service-via-pc… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-96675?
- CVE-2026-96675 is a low-severity vulnerability in Alsa Project Alsa-Lib, classified under Improper Validation of Array Index. CVSS score: 3.3/10. Published 2026-09-23.
- How severe is CVE-2026-96675?
- Low severity. CVSS v3 base score is 3.3 out of 10.