ICSA-21-056-03: Rockwell Automation RSLogix 5000: Versions 16 through 20 vulnerability
Affected Software
3 affected components
Rockwell Automation RSLogix 5000: Versions 16 through 20
Rockwell Automation Studio 5000 Logix Designer>=21
Rockwell Automation FactoryTalk Security, part of the FactoryTalk Services Platform, if configured and deployed v2.10 and later
Event History
Mar 6, 2026
Advisory Published
07:29 PM
Data Sourced
07:29 PM
Affected Software
Frequently Asked Questions
1
What is the severity of ICSA-21-056-03?
The severity of ICSA-21-056-03 is rated as high due to potential unauthorized access.
2
How do I fix ICSA-21-056-03?
To fix ICSA-21-056-03, users should apply the latest security patches provided by Rockwell Automation.
3
What systems are affected by ICSA-21-056-03?
ICSA-21-056-03 affects Rockwell Automation RSLogix 5000 versions 16 through 20, and Studio 5000 Logix Designer.
4
What types of vulnerabilities are associated with ICSA-21-056-03?
ICSA-21-056-03 is associated with improper input validation and potential elevation of privilege.
5
Are there any workarounds for ICSA-21-056-03?
Yes, temporarily restricting network access to affected systems can serve as a workaround until a patch is applied.