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CVE-2026-64243

7.1 · HIGH

In the Linux kernel, the following vulnerability has been resolved: ASoC: codecs: simple-mux: Fix enum control bounds check simple_mux_control_put() rejects values greater than e->items, but enum…

Published Jul 24, 2026CWE-129EPSS 0.12%

Overview

CVE-2026-64243 is a high-severity vulnerability. It was published on July 24, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

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

simple_mux_control_put() rejects values greater than e->items, but

enum control values are zero based. For the two-entry mux used by this

driver, valid values are 0 and 1, so value 2 must be rejected as well.

Accepting e->items can store an invalid mux state, pass it to the GPIO

setter, and pass it on to the DAPM mux update path where it is used as

an index into the enum text array.

Use the same >= e->items check used by the ASoC enum helpers.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/05ef77f02607a3dc5d7f9762cb990f76843315d4Refgit.kernel.org/stable/c/164dcbec9632ca93ae313e6da6e4e05584fa0f02Refgit.kernel.org/stable/c/2ff3ac6f7664fe5639cad01712ac5e021fa7939cRefgit.kernel.org/stable/c/5fe860af8630cf7c78523cbd68e5a234743585aaRefgit.kernel.org/stable/c/6fb653b62f169f6050fac45b56bf21ad097e19f6Refgit.kernel.org/stable/c/d8cc3e747b002a8b965c529de79c0654675b9a1aRefgit.kernel.org/stable/c/f63ad68e18d774a5d15cd7e405ead63f6b322679

How CyberStrike helps

Frequently asked questions

What is CVE-2026-64243?

CVE-2026-64243 is a high-severity vulnerability. It was published on July 24, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2026-64243?

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-64243?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-64243?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-64243 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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