CVE-2020-24685

AC500 V2 unauthenticated crafter packet vulnerability

Published Feb 9, 2021 CVSS 3.1 · 8.6 High EPSS 1.6% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2020-17399 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.
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
ABB
Published
Updated
Aug 4, 2024, 3:19 PM
Reserved
Aug 26, 2020, 12:00 AM
Status
Modified
Published
Feb 9, 2021, 4:15 AM
Modified
Jun 17, 2026, 3:05 AM