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CVE-2026-74730

9.8 · CRITICAL

In the Linux kernel, the following vulnerability has been resolved: NFS: Pin the 'struct nfs_server' during a FREE_STATEID call Dan Aloni reports that he was able to hit a use-after-free bug if a…

Published Aug 22, 2026EPSS 0.51%

Overview

CVE-2026-74730 is a critical-severity vulnerability. It was published on August 22, 2026 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:

NFS: Pin the 'struct nfs_server' during a FREE_STATEID call

Dan Aloni reports that he was able to hit a use-after-free bug if a

FREE_STATEID operation gets delayed for whatever reason. Fix this by

bumping the refcount of the 'struct nfs_server' object for the duration

of the FREE_STATEID so it doesn't get cleaned up from underneath us

while operations are still in flight.

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/80ed3d762628b36c9e4b22fac7c65b72ef3b13ddRefgit.kernel.org/stable/c/af62f1af182d33a0de38308c012841885d8ab92eRefgit.kernel.org/stable/c/caee6a68ffaa5016dfc01cd0b3dc1896a32e3abdRefgit.kernel.org/stable/c/cf616096a0f3a2b60f7d68b6b39674a6867ded9cRefgit.kernel.org/stable/c/d71dfffa512e71b166a889484e4c3b148a9a3af2Refgit.kernel.org/stable/c/d858ab09e787106432d4d9830bad9dfedf02f890Refgit.kernel.org/stable/c/ed1161ab6239761958b38d5667225634fc2be894Refgit.kernel.org/stable/c/ed2f92ce2fc48463c41e0e540b9a3454889e8af8

How CyberStrike helps

Frequently asked questions

What is CVE-2026-74730?

CVE-2026-74730 is a critical-severity vulnerability. It was published on August 22, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2026-74730?

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-2026-74730?

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-2026-74730?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-74730 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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