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TI-2024-22495 Aliases CVE-2024-34026GHSA-fxq3-rjrf-gqq3

Stack-based buffer overflow in OpenPLC_v3

Priority HIGH 76CWE-121Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.02398 84th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OpenPLCOpenPLC_v3b4702061dc14d1024856f71b4543298d77007b88—No fix listedCNA
  • OpenPLC_v3 VendorOpenPLC Affected b4702061dc14d1024856f71b4543298d77007b88 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:openplcproject:openplc_v3_firmware:2024-04-04:*:*:*:*:*:*:*2024-04-04VulnerableOpenPLC
  • cpe:2.3:o:openplcproject:openplc_v3_firmware:2024-04-04:*:*:*:*:*:*:* Versions 2024-04-04 Vulnerable ·OpenPLC

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-34026
  2. 2026-10-03 Alias added: GHSA-fxq3-rjrf-gqq3

References

Exploit 1

  • TI-2024-26520 Incorrect type conversion in OpenPLC_v3 CVSS 3.1HIGH 7.5
  • TI-2024-26519 Incorrect type conversion in OpenPLC_v3 CVSS 3.1HIGH 7.5
  • TI-2024-24528 Out-of-bounds read in OpenPLC_v3 CVSS 3.1HIGH 7.5
  • TI-2024-24527 Out-of-bounds read in OpenPLC_v3 CVSS 3.1HIGH 7.5
  • TI-2026-23850 A path injection vulnerability exists in OpenPLC v3… CVSS 3.1MEDIUM 6.5
  • TI-2021-11719 Command Injection in Open PLC Webserver v3 allows remote attackers to execute arbitrary… CVSS 3.1HIGH 8.8
See all 11 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences