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CVE-2023-53241

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: nfsd: call op_release, even when op_func returns an error For ops with "trivial" replies, nfsd4_encode_operation will shortcut…

Published Sep 15, 2025CWE-401EPSS 0.16%

Overview

CVE-2023-53241 is a medium-severity vulnerability. It was published on September 15, 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:

nfsd: call op_release, even when op_func returns an error

For ops with "trivial" replies, nfsd4_encode_operation will shortcut

most of the encoding work and skip to just marshalling up the status.

One of the things it skips is calling op_release. This could cause a

memory leak in the layoutget codepath if there is an error at an

inopportune time.

Have the compound processing engine always call op_release, even when

op_func sets an error in op->status. With this change, we also need

nfsd4_block_get_device_info_scsi to set the gd_device pointer to NULL

on error to avoid a double free.

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/15a8b55dbb1ba154d82627547c5761cac884d810Refgit.kernel.org/stable/c/3d0dcada384af22dec764c8374a2997870ec86aeRefgit.kernel.org/stable/c/65a33135e91e6dd661ecdf1194b9d90c49ae3570Refgit.kernel.org/stable/c/b11d8162c24af4a351d21e2c804d25ca493305e3Refgit.kernel.org/stable/c/b623a8e5d38a69a3ef8644acb1030dd7c7bc28b3

How CyberStrike helps

Frequently asked questions

What is CVE-2023-53241?

CVE-2023-53241 is a medium-severity vulnerability. It was published on September 15, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-53241?

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-2023-53241?

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-2023-53241?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-53241 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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