CVE-2026-96675: alsa-lib through 1.2.16.1 Denial of Service via pcm_multi

Severity: low (CVSS 3.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-23 · updated 2026-09-24
Weakness: CWE-129

Description

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.

Affected products

ALSA Project alsa-lib: through 1.2.16.1

References

https://github.com/alsa-project/alsa-lib
https://github.com/alsa-project/alsa-lib/blob/v1.2.16.1/src/pcm/pcm_multi.c#L1122-L1131
https://github.com/alsa-project/alsa-lib/pull/527
https://www.vulncheck.com/advisories/alsa-lib-through-1.2.16.1-denial-of-service-via-pcm-multi

Get alerted when CVE-2026-96675 or the next vulnerability affects your stack