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CVE-2023-53201

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: wraparound mbox producer index Driver is not handling the wraparound of the mbox producer index correctly.

Published Sep 15, 2025EPSS 0.17%

Overview

CVE-2023-53201 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:

RDMA/bnxt_re: wraparound mbox producer index

Driver is not handling the wraparound of the mbox producer index correctly.

Currently the wraparound happens once u32 max is reached.

Bit 31 of the producer index register is special and should be set

only once for the first command. Because the producer index overflow

setting bit31 after a long time, FW goes to initialization sequence

and this causes FW hang.

Fix is to wraparound the mbox producer index once it reaches u16 max.

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/0af91306e17ef3d18e5f100aa58aa787869118afRefgit.kernel.org/stable/c/50d77c3739b2b15e9e1f1c9cbe50037d294800f8Refgit.kernel.org/stable/c/79226176cdd1b65a1e6a90e0e1a2b490f0a9df33Refgit.kernel.org/stable/c/7bfa0303fbc265c94cfbd17505c55b99848aa4e3Refgit.kernel.org/stable/c/9341501e2f7af29f5b5562c2840a7fde40eb7de4Refgit.kernel.org/stable/c/c9be352be9bb15e6b83e40abc4df7f4776b435ba

How CyberStrike helps

Frequently asked questions

What is CVE-2023-53201?

CVE-2023-53201 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-2023-53201?

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-2023-53201?

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-2023-53201?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-53201 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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