cvedb.io
CVE-2018-20818
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2019-04-22T11:29:01.970 · Last modified 2026-06-17T01:53:32.400

Summary

A buffer overflow vulnerability was discovered in the OpenPLC controller, in the OpenPLC_v2 and OpenPLC_v3 versions. It occurs in the modbus.cpp mapUnusedIO() function, which can cause a runtime crash of the PLC or possibly have unspecified other impact.

Affected products

openplcproject — openplc_v2_firmware

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.