CVE-2024-39589

Name: CVE-2024-39589
Creator: NVD / NIST
Published: 2024-09-18T15:15:15.333+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.02%

Last modified Jun 17, 2026

CVE-2024-39589 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Multiple invalid pointer dereference vulnerabilities exist in the OpenPLC Runtime EtherNet/IP parser functionality of OpenPLC_v3 16bf8bac1a36d95b73e7b8722d0edb8b9c5bb56a. A specially crafted EtherNet/IP request can lead to denial of service. EPSS estimates a 1.02% chance of exploitation in the next 30 days.

Description

Multiple invalid pointer dereference vulnerabilities exist in the OpenPLC Runtime EtherNet/IP parser functionality of OpenPLC_v3 16bf8bac1a36d95b73e7b8722d0edb8b9c5bb56a. A specially crafted EtherNet/IP request can lead to denial of service. An attacker can send a series of EtherNet/IP requests to trigger these vulnerabilities.This instance of the vulnerability occurs within the `Protected_Logical_Read_Reply` function

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

1.02%

59.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Openplcproject	Openplc V3 Firmware	2024-05-28

References

https://talosintelligence.com/vulnerability_reports/TALOS-2024-2016Exploit, Third Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2024-2016

Timeline

Published: Sep 18, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2024-39589?

How severe is CVE-2024-39589?

CVE-2024-39589 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.02% probability of exploitation in the next 30 days.

How do I fix CVE-2024-39589?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-39589?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST