Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2026-53291

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: ALSA: hda/conexant: Fix missing error check for jack detection In cx_probe(), the return value of snd_hda_jack_detect_enable_ca…

Published Jun 26, 2026CWE-476EPSS 0.12%

Overview

CVE-2026-53291 is a medium-severity vulnerability. It was published on June 26, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. 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:

ALSA: hda/conexant: Fix missing error check for jack detection

In cx_probe(), the return value of snd_hda_jack_detect_enable_callback()

is ignored. This function returns a pointer, and if it fails (e.g., due

to memory allocation failure), it returns an error pointer which must

be checked using IS_ERR().

If the registration fails, the driver continues to probe, but the jack

detection callback will not be registered. This can lead to a kernel

crash later when the driver attempts to handle jack events or accesses

the uninitialized structure.

Check the return value using IS_ERR() and propagate the error via

PTR_ERR() to the probe caller.

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/1da5c73f3793b224696617a2a21def7500ba18d6Refgit.kernel.org/stable/c/49c2c5924552e1d2f8b635dee663abebbb7cf63bRefgit.kernel.org/stable/c/a2a33e87a2ffce3046c574d24eec4390c27c9365Refgit.kernel.org/stable/c/b0e2333a231107adedd38c6fcfe1adc6162716fcRefgit.kernel.org/stable/c/d68f753d89f4ef6e410d7e8b7e8ab2fdde921b80Refgit.kernel.org/stable/c/dd110cc00cf854a8ecd8d003127a4178c28574eaRefgit.kernel.org/stable/c/f837c7b85143a7c54140ff41ad5c076b73cd9933

How CyberStrike helps

Frequently asked questions

What is CVE-2026-53291?

CVE-2026-53291 is a medium-severity vulnerability. It was published on June 26, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-53291?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-53291?

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-2026-53291?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-53291 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.

Related MEDIUM CVEs from 2026

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999