CVE-2024-34026

Openplcproject Openplc V3 Firmware remote code execution

9.0 CRITICALEPSS 2.40%

Published18 Sept 2024

Description

A stack-based buffer overflow vulnerability exists in the OpenPLC Runtime EtherNet/IP parser functionality of OpenPLC _v3 b4702061dc14d1024856f71b4543298d77007b88. A specially crafted EtherNet/IP request can lead to remote code execution. An attacker can send a series of EtherNet/IP requests to trigger this vulnerability.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityHigh

Privileges requiredNone

User interactionNone

ScopeChanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected products

Openplcproject Openplc V3 Firmware2024-04-04

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

Frequently asked

Is CVE-2024-34026 being actively exploited?

CVE-2024-34026 is not in the CISA KEV catalog. Its EPSS exploit probability is 2.40%.

How severe is CVE-2024-34026?

CVE-2024-34026 has a CVSS 3.1 base score of 9.0, rated critical. EPSS estimates a 2.40% probability of exploitation.

Which products are affected by CVE-2024-34026?

Affected products include Openplcproject Openplc V3 Firmware.

How do I fix CVE-2024-34026?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-34026 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.