01 Record

CVE-2026-64243

ASoC: codecs: simple-mux: Fix enum control bounds check

HighPUBLISHEDCNA: Linux

CNA base score7.1 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

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02 Description

ASoC: codecs: simple-mux: Fix enum control bounds check

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 ImpactpartialSuccessful exploitation gives limited 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

0.16% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 5.1% of scored records. A rank, not a probability.

NVD base score

7.1 (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:N/A:H

NVD analysis status

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

Red Hat severity

Moderate. 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

2026-07-24 15:27Z3 MO AGO

Last updated

2026-10-19 20:28Z9 DAYS AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.1)

CNA CVSS vector

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

Weaknesses

CWE-125Out-of-bounds ReadBase
CWE-129Improper Validation of Array IndexVariant

Data version

5.2

Document digest

467f7cf461cde264e4ed8ee659d7f807847fedfd575af9d318a241e124be2907

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux342fbb7578d1741ff646d7b08e14e8753267b9fa to < 6fb653b62f169f6050fac45b56bf21ad097e19f6, 342fbb7578d1741ff646d7b08e14e8753267b9fa to < d8cc3e747b002a8b965c529de79c0654675b9a1a, 342fbb7578d1741ff646d7b08e14e8753267b9fa to < 5fe860af8630cf7c78523cbd68e5a234743585aa, 342fbb7578d1741ff646d7b08e14e8753267b9fa to < 2ff3ac6f7664fe5639cad01712ac5e021fa7939c, 342fbb7578d1741ff646d7b08e14e8753267b9fa to < 164dcbec9632ca93ae313e6da6e4e05584fa0f02, 342fbb7578d1741ff646d7b08e14e8753267b9fa to < 05ef77f02607a3dc5d7f9762cb990f76843315d4, 342fbb7578d1741ff646d7b08e14e8753267b9fa to < f63ad68e18d774a5d15cd7e405ead63f6b322679, 5.11—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/6fb653b62f169f6050fac45b56bf21ad097e19f6
git.kernel.orghttps://git.kernel.org/stable/c/d8cc3e747b002a8b965c529de79c0654675b9a1a
git.kernel.orghttps://git.kernel.org/stable/c/5fe860af8630cf7c78523cbd68e5a234743585aa
git.kernel.orghttps://git.kernel.org/stable/c/2ff3ac6f7664fe5639cad01712ac5e021fa7939c
git.kernel.orghttps://git.kernel.org/stable/c/164dcbec9632ca93ae313e6da6e4e05584fa0f02
git.kernel.orghttps://git.kernel.org/stable/c/05ef77f02607a3dc5d7f9762cb990f76843315d4
git.kernel.orghttps://git.kernel.org/stable/c/f63ad68e18d774a5d15cd7e405ead63f6b322679

07 Fixed in

Debian 12

linux
Fixed in 6.1.176-1

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

Debian 13

linux
Fixed in 6.12.94-1

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

Debian 14

linux
Fixed in 7.0.12-1

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