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Fencer Intel
medium 4.4

CVE-2026-96674 json

alsa-lib through 1.2.16.1 Integer Overflow via Topology File

published last mo. modified last mo. also EUVD-2026-85346

cvss
4.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 1%
public exploits
0
none known

Summary

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.

Patch / fix

  • alsa SLE Micro 5.5 1.2.8-150500.3.6.1

suse advisories SUSE-SU-2026:4735-1

  • alsa openSUSE Tumbleweed 1.2.16.1-3.1

opensuse advisories openSUSE-SU-2026:12147-1

  • alsa-lib Azure Linux 3.0 1.2.16.1-3

azure linux advisories AZL-105054

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-96674 updated cvss 4.4

alsa-lib: alsa-lib: Integer Overflow via Crafted Topology Files

  • Red Hat Enterprise Linux 6 alsa-lib 1.2.16.1-1.el10
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 7 alsa-lib 1.2.16.1-1.el10 Red Hat Enterprise Linux 8 alsa-ucm, alsa-lib 1.2.16.1-1.el10 Red Hat Enterprise Linux 9 alsa-ucm, alsa-lib 1.2.16.1-1.el10 Red Hat Enterprise Linux 10 alsa-lib 1.2.16.1-1.el10
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Hardened Images alsa-lib 1.2.16.1-1.el10
    affected: workaround, no fix available

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last mo.

Exploit prediction

0.12% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 4.0 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
CNA 3.1 4.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
CNA 4.0 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • ALSA Project alsa-lib

Classification

Weakness
  • CWE-190 Integer Overflow or Wraparound

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.