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CVE-2026-53107

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: wifi: libertas: don't kill URBs in interrupt context Serialization for the TX path was enforced by calling usb_kill_urb()/usb_k…

Published Jun 24, 2026EPSS 0.16%

Overview

CVE-2026-53107 is a medium-severity vulnerability. It was published on June 24, 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:

wifi: libertas: don't kill URBs in interrupt context

Serialization for the TX path was enforced by calling

usb_kill_urb()/usb_kill_anchored_urbs(), to prevent transmission before

a previous URB was completed. usb_tx_block() can be called from

interrupt context (e.g. in the HCD giveback path), so we can't always

use it to kill in-flight URBs.

Prevent sleeping during interrupt context by checking the tx_submitted

anchor for existing URBs. We now return -EBUSY, to indicate there's

a pending request.

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/00c0317cebf44151df18fb647781f315268cdd98Refgit.kernel.org/stable/c/4f273d3f98ebc60c30bbfb3ed4a7f0477d3eaed2Refgit.kernel.org/stable/c/7c5c2b661bdb78c1472b8833265c9ed1ee880039

How CyberStrike helps

Frequently asked questions

What is CVE-2026-53107?

CVE-2026-53107 is a medium-severity vulnerability. It was published on June 24, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-53107?

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-2026-53107?

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-2026-53107?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-53107 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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