CVE-2024-39589: Openplcproject OpenPLC v3 Firmware

High severity, CVSS 7.5. EPSS: 1% chance of exploitation in the next 30 days.

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

Affected products

Published 2024-09-18. Last modified 2026-06-17.