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CVE-2026-74425

7.5 · HIGH

In the Linux kernel, the following vulnerability has been resolved: afs: handle CB.InitCallBackState3 requests without a server record The cache manager callback path now attaches the server reco…

Published Aug 15, 2026EPSS 0.35%

Overview

CVE-2026-74425 is a high-severity vulnerability. It was published on August 15, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

afs: handle CB.InitCallBackState3 requests without a server record

The cache manager callback path now attaches the server record to an

incoming call through the rxrpc peer's app data. That association is

not guaranteed to exist for every callback request, and most callback

handlers already tolerate that case.

Make CB.InitCallBackState3 follow the same pattern by checking whether a

server record was attached before using it. If the peer is not mapped

to a server record, trace the request and ignore it, matching the

existing behaviour for other unmatched callback requests.

This keeps the callback handler consistent with the rest of the cache

manager service and avoids depending on peer state that may not be

available for a given 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/0bd5f2786a878148190b4c7c259d01313d5f2357Refgit.kernel.org/stable/c/42e3917cdbdc3d35e191c525687a6d5427f237fdRefgit.kernel.org/stable/c/cc848a080f7a6848dfeef441722419fdcbfe9b8dRefgit.kernel.org/stable/c/f3cf725cd284b7912d5522babb44721bf38c8887

How CyberStrike helps

Frequently asked questions

What is CVE-2026-74425?

CVE-2026-74425 is a high-severity vulnerability. It was published on August 15, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2026-74425?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-74425?

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-2026-74425?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-74425 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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