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CVE-2026-25068

19
FAUCET Score

CVE-2026-25068 is a heap-based buffer overflow vulnerability in alsa-lib versions 1.2.2 through 1.2.15.2, affecting the topology mixer control decoder. A specially crafted topology file can exploit this by providing an excessive number of channels, causing out-of-bounds heap writes and leading to a system crash. With a CVSS score of 4.6 (Medium), this vulnerability requires local access and user interaction to trigger, resulting in a denial of service. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.2.2, < 1.2.15.2CPE match
cpe:2.3:a:alsa-project:alsa-lib:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

4.6MEDIUM

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/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

Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
ACTIVE
VS Confidentiality
NONE
VS Integrity
NONE
VS Availability
LOW
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.19%
Probability of exploitation in next 30 days
EPSS Percentile
9.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0019 is in the 11th percentile among its peer group of 5,765 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

ubuntupatch availablevia ubuntu_usn
Product: alsa-lib (focal)Fixed in: 1.2.2-2.1ubuntu2.5+esm1
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 10Fixed in: alsa-lib
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: alsa-lib
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: alsa-lib
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: alsa-lib
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: alsa-lib

Vendor Advisories (2)

ubuntuUSN-8044-2

alsa-lib vulnerability

Jun 9, 2026
redhatCVE-2026-25068Moderate

alsa-lib: alsa-lib Topology Decoder Heap-based Buffer Overflow

Jan 29, 2026

References

lists.debian.org / debian-lts-announce/2026/02/msg00008.html
github.com / alsa-project/alsa-lib/commit/5f7fe33002d2d98d84f72e381ec2cccc0d5d3d40
vulncheck.com / advisories/alsa-lib-topology-decoder-heap-based-buffer-overflow