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CVE-2026-46180

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: Fix potential use-after-free issue when stopping watchdog task Watchdog task might end between send_sig() and k…

Published May 28, 2026CWE-416EPSS 0.14%

Overview

CVE-2026-46180 is a high-severity vulnerability. It was published on May 28, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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: brcmfmac: Fix potential use-after-free issue when stopping watchdog task

Watchdog task might end between send_sig() and kthread_stop() calls, what

results in the use-after-free issue. Fix this by increasing watchdog task

reference count before calling send_sig() and dropping it by switching to

kthread_stop_put().

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/658d2e46c2e9a8eb9b80c5e803ce3c89885b3366Refgit.kernel.org/stable/c/908b92231e1ded53e43fcfad5e0704d83e1b803cRefgit.kernel.org/stable/c/a21f735fb1017ef89c6f9dbf4d799513b4e7bd5aRefgit.kernel.org/stable/c/c623b63580880cc742255eaed3d79804c1b91143Refgit.kernel.org/stable/c/d16827cb1d3936f7627d0da6044483f743ebde03Refgit.kernel.org/stable/c/d616bb10de79e5c2bd8a24230a1128aeaf715615Refgit.kernel.org/stable/c/df2e90d6a9955510f24f1dada78cfc439fd9fa88Refgit.kernel.org/stable/c/ed4168d1a50fef5be8eca947fbbf05a28507d265

How CyberStrike helps

Frequently asked questions

What is CVE-2026-46180?

CVE-2026-46180 is a high-severity vulnerability. It was published on May 28, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-46180?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-46180?

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-2026-46180?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-46180 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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