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CVE-2025-38570

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: eth: fbnic: unlink NAPIs from queues on error to open CI hit a UaF in fbnic in the AF_XDP portion of the queues.py test.

Published Aug 19, 2025CWE-416EPSS 0.17%

Overview

CVE-2025-38570 is a high-severity vulnerability. It was published on August 19, 2025 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:

eth: fbnic: unlink NAPIs from queues on error to open

CI hit a UaF in fbnic in the AF_XDP portion of the queues.py test.

The UaF is in the __sk_mark_napi_id_once() call in xsk_bind(),

NAPI has been freed. Looks like the device failed to open earlier,

and we lack clearing the NAPI pointer from the queue.

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/21d3f8441c7f317b93ba6a8029610c8b7e3773dbRefgit.kernel.org/stable/c/4b31bcb025cb497da2b01f87173108ff32d350d2Refgit.kernel.org/stable/c/4b59f9deff3bdb52b223c85048f1d2924803b817

How CyberStrike helps

Frequently asked questions

What is CVE-2025-38570?

CVE-2025-38570 is a high-severity vulnerability. It was published on August 19, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-38570?

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-2025-38570?

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-2025-38570?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-38570 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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