VulnerabilityModified

CVE-2024-34026

A stack-based buffer overflow vulnerability exists in the OpenPLC Runtime EtherNet/IP parser functionality of OpenPLC _v3 b4702061dc14d1024856f71b4543298d77007b88.

CRITICAL 9.8EPSS 2.40%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.40%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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: 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 2.40% probability · 83th percentile
CISA KEV: Not listed
Weakness: CWE-121, CWE-787
Affected: openplcproject/openplc v3 firmware
Source: talos-cna@cisco.com

References

https://talosintelligence.com/vulnerability_reports/TALOS-2024-2005Exploit, Third Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2024-2005

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.