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CVE-2023-39540

5.9 · MEDIUM

A denial of service vulnerability exists in the ICMP and ICMPv6 parsing functionality of Weston Embedded uC-TCP-IP v3.06.01.

Published Feb 20, 2024CWE-126EPSS 0.81%

Overview

CVE-2023-39540 is a medium-severity vulnerability. It was published on February 20, 2024 and has a CVSS 3.1 base score of 5.9 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

A denial of service vulnerability exists in the ICMP and ICMPv6 parsing functionality of Weston Embedded uC-TCP-IP v3.06.01. A specially crafted network packet can lead to an out-of-bounds read. An attacker can send a malicious packet to trigger this vulnerability.This vulnerability concerns a denial of service within the parsing an IPv4 ICMP packet.

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

Reftalosintelligence.com/vulnerability_reports/TALOS-2023-1828Reftalosintelligence.com/vulnerability_reports/TALOS-2023-1828Refwww.talosintelligence.com/vulnerability_reports/TALOS-2023-1828

How CyberStrike helps

Frequently asked questions

What is CVE-2023-39540?

CVE-2023-39540 is a medium-severity vulnerability. It was published on February 20, 2024 and has a CVSS 3.1 base score of 5.9 (MEDIUM).

How severe is CVE-2023-39540?

This vulnerability has a CVSS 3.1 base score of 5.9, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-39540?

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-2023-39540?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-39540 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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