AUGUST 4, 2026
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Case File

CVE-2020-24685

HIGH · CVSS 8.6 EPSS 1.61%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-02-09 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.6. It may lead to a denial-of-service condition.

CVE
CVE-2020-24685
Severity
HIGH
CVSS
8.6
EPSS
1.61%

Original NVD Description

An unauthenticated specially crafted packet sent by an attacker over the network will cause a denial-of-service (DoS) vulnerability. Vulnerability allows attacker to stop the PLC. After stopping (ERR LED flashing red), physical access to the PLC is required in order to restart the application. This issue affects: ABB AC500 V2 products with onboard Ethernet version 2.8.4 and prior versions.

Related CVEs

Other vulnerabilities affecting the same vendor(s)