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CVE-2023-53340

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Collect command failures data only for known commands DEVX can issue a general command, which is not used by mlx5 dri…

Published Sep 17, 2025CWE-129EPSS 0.22%

Overview

CVE-2023-53340 is a high-severity vulnerability. It was published on September 17, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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:

net/mlx5: Collect command failures data only for known commands

DEVX can issue a general command, which is not used by mlx5 driver.

In case such command is failed, mlx5 is trying to collect the failure

data, However, mlx5 doesn't create a storage for this command, since

mlx5 doesn't use it. This lead to array-index-out-of-bounds error.

Fix it by checking whether the command is known before collecting the

failure data.

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/2a0a935fb64ee8af253b9c6133bb6702fb152ac2Refgit.kernel.org/stable/c/411e4d6caa7f7169192b8dacc8421ac4fd64a354Refgit.kernel.org/stable/c/d8b6f175235d7327b4e1b13216859e89496dfbd5

How CyberStrike helps

Frequently asked questions

What is CVE-2023-53340?

CVE-2023-53340 is a high-severity vulnerability. It was published on September 17, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2023-53340?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-53340?

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-2023-53340?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-53340 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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