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CVE-2025-38430

9.8 · CRITICAL

In the Linux kernel, the following vulnerability has been resolved: nfsd: nfsd4_spo_must_allow() must check this is a v4 compound request If the request being processed is not a v4 compound reque…

Published Jul 25, 2025EPSS 0.56%

Overview

CVE-2025-38430 is a critical-severity vulnerability. It was published on July 25, 2025 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. 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:

nfsd: nfsd4_spo_must_allow() must check this is a v4 compound request

If the request being processed is not a v4 compound request, then

examining the cstate can have undefined results.

This patch adds a check that the rpc procedure being executed

(rq_procinfo) is the NFSPROC4_COMPOUND procedure.

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/1244f0b2c3cecd3f349a877006e67c9492b41807Refgit.kernel.org/stable/c/2c54bd5a380ebf646fb9efbc4ae782ff3a83a5afRefgit.kernel.org/stable/c/425efc6b3292a3c79bfee4a1661cf043dcd9cf2fRefgit.kernel.org/stable/c/64a723b0281ecaa59d31aad73ef8e408a84cb603Refgit.kernel.org/stable/c/7a75a956692aa64211a9e95781af1ec461642de4Refgit.kernel.org/stable/c/b1d0323a09a29f81572c7391e0d80d78724729c9Refgit.kernel.org/stable/c/bf78a2706ce975981eb5167f2d3b609eb5d24c19Refgit.kernel.org/stable/c/e7e943ddd1c6731812357a28e7954ade3a7d8517Reflists.debian.org/debian-lts-announce/2025/10/msg00007.htmlReflists.debian.org/debian-lts-announce/2025/10/msg00008.html

How CyberStrike helps

Frequently asked questions

What is CVE-2025-38430?

CVE-2025-38430 is a critical-severity vulnerability. It was published on July 25, 2025 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2025-38430?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-38430?

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-2025-38430?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-38430 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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