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CVE-2023-53638

7.0 · HIGH

In the Linux kernel, the following vulnerability has been resolved: octeon_ep: cancel queued works in probe error path If it fails to get the devices's MAC address, octep_probe exits while leavin…

Published Oct 7, 2025CWE-416EPSS 0.14%

Overview

CVE-2023-53638 is a high-severity vulnerability. It was published on October 7, 2025 and has a CVSS 3.1 base score of 7.0 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.0, 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:

octeon_ep: cancel queued works in probe error path

If it fails to get the devices's MAC address, octep_probe exits while

leaving the delayed work intr_poll_task queued. When the work later

runs, it's a use after free.

Move the cancelation of intr_poll_task from octep_remove into

octep_device_cleanup. This does not change anything in the octep_remove

flow, but octep_device_cleanup is called also in the octep_probe error

path, where the cancelation is needed.

Note that the cancelation of ctrl_mbox_task has to follow

intr_poll_task's, because the ctrl_mbox_task may be queued by

intr_poll_task.

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/62312e2f6466b5f0a120542a38b410d88a34ed00Refgit.kernel.org/stable/c/758c91078165ae641b698750a72eafe7968b3756

How CyberStrike helps

Frequently asked questions

What is CVE-2023-53638?

CVE-2023-53638 is a high-severity vulnerability. It was published on October 7, 2025 and has a CVSS 3.1 base score of 7.0 (HIGH).

How severe is CVE-2023-53638?

This vulnerability has a CVSS 3.1 base score of 7.0, 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-2023-53638?

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-2023-53638?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-53638 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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