CVE-2026-96674CWE-190

CVE-2026-96674

Medium · published September 23, 2026

CVSS v3.1
4.4
EPSS
0%
Percentile
1.5
In the wild
Unconfirmed
What it is

alsa-lib through 1.2.16.1 computes combined topology element size using 32-bit arithmetic in src/topology/ctl.c, allowing integer overflow that defeats bounds checks. Attackers can supply crafted topology files that wrap size calculations, causing the decoder to read beyond the topology buffer and potentially leak sensitive data or crash the application.

The record
Technical detail
CVSS v3.1
4.4 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
CVSS v4.0
4.8 · CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N
EPSS
0.00115 · 1.5th percentile
Weakness
CWE-190 · Integer Overflow or Wraparound
Published
2026-09-23T20:16Z
References (6)
https://github.com/alsa-project/alsa-lib · [email protected]https://github.com/alsa-project/alsa-lib/blob/v1.2.16.1/src/topology/ctl.c#L1316-L1326 · [email protected]https://github.com/alsa-project/alsa-lib/blob/v1.2.16.1/src/topology/ctl.c#L1420-L1430 · [email protected]https://github.com/alsa-project/alsa-lib/blob/v1.2.16.1/src/topology/ctl.c#L1511-L1521 · [email protected]https://github.com/alsa-project/alsa-lib/pull/527 · [email protected]https://www.vulncheck.com/advisories/alsa-lib-through-1.2.16.1-integer-overflow-via-topology-file · [email protected]
EPSS history
Timeline
  • 25 SEP 03:28Z
    EPSS moved — → 0%
    epss
  • 23 SEP 15:35Z
    alsa-lib through 1.2.16.1 Integer Overflow via Topology File
    cvelistv5