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CVE-2020-24685

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CVE-2020-24685

Published: Feb 9, 2021

Modified: Aug 4, 2024

PUBLISHED

CVSS v3.1

8.6

HIGH

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.

VendorProductVersions

ABB

AC500 V2 products with onboard Ethernet

affected
version 2.8.4 and prior versions

Weaknesses (CWE)

CWE-789

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

References

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