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CVE-2024-39589

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-09-18 · updated 2026-06-17
• Weakness: CWE-704

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

Affected products

• OpenPLC_v3: 2024-05-28

References

• https://talosintelligence.com/vulnerability_reports/TALOS-2024-2016
• https://www.talosintelligence.com/vulnerability_reports/TALOS-2024-2016

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