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CVE-2026-46074

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: spi: ch341: fix memory leaks on probe failures Make sure to deregister the controller, disable pins, and kill and free the RX U…

Published May 27, 2026CWE-401EPSS 0.16%

Overview

CVE-2026-46074 is a medium-severity vulnerability. It was published on May 27, 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:

spi: ch341: fix memory leaks on probe failures

Make sure to deregister the controller, disable pins, and kill and free

the RX URB on probe failures to mirror disconnect and avoid memory

leaks and use-after-free.

Also add an explicit URB kill on disconnect for symmetry (even if that

is not strictly required as USB core would have stopped it in the

current setup).

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/5c6518633702d7f7b1153e9d8e042af847f11ef3Refgit.kernel.org/stable/c/9bee2faf9e21c796d0d222c9d84a98f41bd303a0Refgit.kernel.org/stable/c/b99e3ddb91b499d920e63a2daff8880be68cfe9eRefgit.kernel.org/stable/c/ff8a7996dc8bf433efe2126ffdaee5b374a89e30

How CyberStrike helps

Frequently asked questions

What is CVE-2026-46074?

CVE-2026-46074 is a medium-severity vulnerability. It was published on May 27, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-46074?

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-2026-46074?

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-2026-46074?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-46074 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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