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CVE-2023-52941

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: can: isotp: split tx timer into transmission and timeout The timer for the transmission of isotp PDUs formerly had two function…

Published Mar 27, 2025EPSS 0.21%

Overview

CVE-2023-52941 is a medium-severity vulnerability. It was published on March 27, 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:

can: isotp: split tx timer into transmission and timeout

The timer for the transmission of isotp PDUs formerly had two functions:

1. send two consecutive frames with a given time gap

2. monitor the timeouts for flow control frames and the echo frames

This led to larger txstate checks and potentially to a problem discovered

by syzbot which enabled the panic_on_warn feature while testing.

The former 'txtimer' function is split into 'txfrtimer' and 'txtimer'

to handle the two above functionalities with separate timer callbacks.

The two simplified timers now run in one-shot mode and make the state

transitions (especially with isotp_rcv_echo) better understandable.

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/4f027cba8216f42a18b544842efab134f8b1f9f4Refgit.kernel.org/stable/c/cae4c9bc35f72af5d4a079bb9d9fd62c4088a411

How CyberStrike helps

Frequently asked questions

What is CVE-2023-52941?

CVE-2023-52941 is a medium-severity vulnerability. It was published on March 27, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-52941?

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-2023-52941?

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-2023-52941?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-52941 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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