CVE-2024-39589 - CVE House
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Status published High CVE-2024-39589

Multiple invalid pointer dereference vulnerabilities exist in the OpenPLC Runtime...

Vulnerability 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

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Discovered by Jared Rittle of Cisco Talos.

References

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Critical 9

Affected Vendor

Affected Software

OpenPLC_v3
Vulnerable Versions:
16bf8bac1a36d95b73e7b8722d0edb8b9c5bb56a

Timeline

Official Publish: September 18th, 2024
Last Modified: November 4th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

CWE-704

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.