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CVE-2025-40121

In the Linux kernel, the following vulnerability has been resolved: ASoC: Intel: bytcr_rt5651: Fix invalid quirk input mapping When an invalid value is passed via quirk option, currently bytcr_rt…

Published Nov 12, 2025EPSS 0.23%

Overview

CVE-2025-40121 is a known-severity vulnerability. It was published on November 12, 2025.

Technical description

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

ASoC: Intel: bytcr_rt5651: Fix invalid quirk input mapping

When an invalid value is passed via quirk option, currently

bytcr_rt5640 driver just ignores and leaves as is, which may lead to

unepxected results like OOB access.

This patch adds the sanity check and corrects the input mapping to the

certain default value if an invalid value is passed.

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/2204e582b4eea872e1e7a5c90edcb84b928c68b0Refgit.kernel.org/stable/c/4336efb59ef364e691ef829a73d9dbd4d5ed7c7bRefgit.kernel.org/stable/c/64a36a7032082b4c330ce081acb6efb99246020eRefgit.kernel.org/stable/c/95e29db33b5f73218ae08ebb48c61c9a8d28e2ffRefgit.kernel.org/stable/c/bff827b0d507e52b23efab9f67c232a4f037ab2cRefgit.kernel.org/stable/c/c60f269c123210a6846d6d1367de0eaa402c10b0Refgit.kernel.org/stable/c/f197894de2f4ef46c7d53827d9df294b75c35e13Refgit.kernel.org/stable/c/fdf99978a6480e14405212472b6c747e0fa43bed

How CyberStrike helps

Frequently asked questions

What is CVE-2025-40121?

CVE-2025-40121 is a known-severity vulnerability. It was published on November 12, 2025.

How severe is CVE-2025-40121?

CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.

How do I fix or remediate CVE-2025-40121?

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-2025-40121?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-40121 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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