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CVE-2025-40005

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: spi: cadence-quadspi: Implement refcount to handle unbind during busy driver support indirect read and indirect write operation…

Published Oct 20, 2025EPSS 0.20%

Overview

CVE-2025-40005 is a medium-severity vulnerability. It was published on October 20, 2025 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:

spi: cadence-quadspi: Implement refcount to handle unbind during busy

driver support indirect read and indirect write operation with

assumption no force device removal(unbind) operation. However

force device removal(removal) is still available to root superuser.

Unbinding driver during operation causes kernel crash. This changes

ensure driver able to handle such operation for indirect read and

indirect write by implementing refcount to track attached devices

to the controller and gracefully wait and until attached devices

remove operation completed before proceed with removal operation.

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/56787f4a75907ae99b5f5842b756fa68e2482f6dRefgit.kernel.org/stable/c/65ed52200080eafce3eead05cf22ce01238defcaRefgit.kernel.org/stable/c/7446284023e8ef694fb392348185349c773eefb3Refgit.kernel.org/stable/c/8ce3ebbe5c718940b4e94f5c25f5720223f893f8Refgit.kernel.org/stable/c/8df235f768cea7a5829cb02525622646eb0df5f5Refgit.kernel.org/stable/c/b7ec8a2b094a33d0464958c2cbf75b8f229098b0

How CyberStrike helps

Frequently asked questions

What is CVE-2025-40005?

CVE-2025-40005 is a medium-severity vulnerability. It was published on October 20, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2025-40005?

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-2025-40005?

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-2025-40005?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-40005 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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