01 Record

CVE-2026-23089

ALSA: usb-audio: Fix use-after-free in snd_usb_mixer_free()

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

ALSA: usb-audio: Fix use-after-free in snd_usb_mixer_free()

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.15% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 4.9% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-10-19.

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-02-04 16:08Z8 MO AGO

Last updated

2026-10-19 18:25Z9 DAYS AGO

Reserved

2026-01-13

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-416Use After FreeVariant

Data version

5.2

Document digest

4764770d50a0594e9cf9c8e036281cc02d9e79ab1d363435878294134a506149

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux6639b6c2367f884ca172b78d69f7da17bfab2e5e to < 51b1aa6fe7dc87356ba58df06afb9677c9b841ea, 6639b6c2367f884ca172b78d69f7da17bfab2e5e to < 56fb6efd5d04caf6f14994d51ec85393b9a896c6, 6639b6c2367f884ca172b78d69f7da17bfab2e5e to < 7009daeefa945973a530b2f605fe445fc03747af, 6639b6c2367f884ca172b78d69f7da17bfab2e5e to < 7bff0156d13f0ad9436e5178b979b063d59f572a, 6639b6c2367f884ca172b78d69f7da17bfab2e5e to < e6f103a22b08daf5df2f4aa158081840e5910963, 6639b6c2367f884ca172b78d69f7da17bfab2e5e to < dc1a5dd80af1ee1f29d8375b12dd7625f6294dad, 6639b6c2367f884ca172b78d69f7da17bfab2e5e to < 930e69757b74c3ae083b0c3c7419bfe7f0edc7b2, 2.6.13—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/51b1aa6fe7dc87356ba58df06afb9677c9b841ea
git.kernel.orghttps://git.kernel.org/stable/c/56fb6efd5d04caf6f14994d51ec85393b9a896c6
git.kernel.orghttps://git.kernel.org/stable/c/7009daeefa945973a530b2f605fe445fc03747af
git.kernel.orghttps://git.kernel.org/stable/c/7bff0156d13f0ad9436e5178b979b063d59f572a
git.kernel.orghttps://git.kernel.org/stable/c/e6f103a22b08daf5df2f4aa158081840e5910963
git.kernel.orghttps://git.kernel.org/stable/c/dc1a5dd80af1ee1f29d8375b12dd7625f6294dad
git.kernel.orghttps://git.kernel.org/stable/c/930e69757b74c3ae083b0c3c7419bfe7f0edc7b2

07 Fixed in

Debian 12

linux
Fixed in 6.1.162-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.69-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 6.18.8-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.