CVE-2018-20818

CRITICAL · CVSS 9.8 EPSS 1.53%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2019-04-22 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

CVE

CVE-2018-20818

Severity

CRITICAL

CVSS

9.8

EPSS

1.53%

Original NVD Description

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.