Check Point Advisories

Rockwell Automation FactoryTalk Linx Denial of Service (CVE-2020-5806)

Vulnerability
Protection

Check Point Reference:	CPAI-2020-4295
Date Published:	3 Apr 2025
Severity:	Medium
Last Updated:	Thursday 03 April, 2025
Source:
Industry Reference:	CVE-2020-5806
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Rockwell Automation FactoryTalk Linx 6.11 and prior
Vulnerability Description	A denial of service vulnerability exists in Rockwell Automation FactoryTalk Linx. Successful exploitation of this vulnerability would allow a remote attacker to create a denial of service condition on the affected system.

Protection Overview

This protection detects attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R81 / R80 / R77 / R75

In the IPS tab, click Protections and find the Rockwell Automation FactoryTalk Linx Denial of Service (CVE-2020-5806) protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: SCADA Protection Violation.
Attack Information: Rockwell Automation FactoryTalk Linx Denial of Service (CVE-2020-5806)