AUGUST 4, 2026
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Case File

CVE-2020-16850

HIGH · CVSS 7.5 EPSS 2.12%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2020-11-30 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. Exploitation may require the attacker to be authenticated. It may lead to a denial-of-service condition.

CVE
CVE-2020-16850
Severity
HIGH
CVSS
7.5
EPSS
2.12%

Original NVD Description

Mitsubishi MELSEC iQ-R Series PLCs with firmware 49 allow an unauthenticated attacker to halt the industrial process by sending a crafted packet over the network. This denial of service attack exposes Improper Input Validation. After halting, physical access to the PLC is required in order to restore production, and the device state is lost. This is related to R04CPU, RJ71GF11-T2, R04CPU, and RJ71GF11-T2.

Related CVEs

Other vulnerabilities affecting the same vendor(s)