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CVE-2026-23094

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: uacce: fix isolate sysfs check condition uacce supports the device isolation feature.

Published Feb 4, 2026EPSS 0.13%

Overview

CVE-2026-23094 is a medium-severity vulnerability. It was published on February 4, 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:

uacce: fix isolate sysfs check condition

uacce supports the device isolation feature. If the driver

implements the isolate_err_threshold_read and

isolate_err_threshold_write callback functions, uacce will create

sysfs files now. Users can read and configure the isolation policy

through sysfs. Currently, sysfs files are created as long as either

isolate_err_threshold_read or isolate_err_threshold_write callback

functions are present.

However, accessing a non-existent callback function may cause the

system to crash. Therefore, intercept the creation of sysfs if

neither read nor write exists; create sysfs if either is supported,

but intercept unsupported operations at the call site.

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/82821a681d5dcce31475a65190fc39ea8f372cc0Refgit.kernel.org/stable/c/98eec349259b1fd876f350b1c600403bcef8f85dRefgit.kernel.org/stable/c/9ab05cdcac354b1b1139918f49c6418b9005d042Refgit.kernel.org/stable/c/fdbbb47d15ae17bf39fafec7e2028c1f8efba15e

How CyberStrike helps

Frequently asked questions

What is CVE-2026-23094?

CVE-2026-23094 is a medium-severity vulnerability. It was published on February 4, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-23094?

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-2026-23094?

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-2026-23094?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-23094 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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