The security of our products is important to us as your industrial automation supplier. This security issue was found internally during routine testing and is being reported based on our commitment to customer transparency and improvement of all business environments.
Product Description
CompactLogix® 5370 Controllers are part of the Integrated Architecture® system. These controllers include integrated safety, and use the same programming software, network protocol, and information capabilities as all Logix controllers.
Affected Products and Solution
Affected Product |
CVE |
Affected Software Version |
Corrected in Software Version |
Affected Catalog Numbers |
CompactLogix® 5370 |
CVE-2025-11743 |
Version 34.013 and prior, Version 35.012 and prior, Version 36.011 |
Versions 37.011 and later, Version 34.016, Version 35.015, Version 36.012 |
Security Issue Details
Category |
Details |
CVE ID |
CVE-2025-11743 |
Impact |
A denial-of-service security issue in the affected product. The security issue occurs when a malformed CIP forward open message is sent. This could result in a major nonrecoverable fault a restart is required to recover. |
CVSS 3.1 Base Score |
|
CVSS 4.0 Base Score |
|
CWE |
CWE-1284: Improper Validation of Specified Quantity in Input |
Known Exploited Vulnerability |
No (Not listed in KEV database) |
Mitigations and Workarounds
Customers using the affected software, who are not able to upgrade to one of the corrected versions, should use our security best practices.
Revision History
Revision |
Date |
Description |
1.0 |
1/20/2026 |
Initial release |
Glossary:
· Denial of Service (DoS): Attack is a malicious attempt to disrupt the normal functioning of a targeted server, service, or network by overwhelming it with a flood of traffic or triggering a crash.
Get Up-to-Date Product Security Information
Visit the Rockwell Automation security advisories on the Trust Center page to:
· Subscribe to product security alerts
· Review the current list of Rockwell Automation security advisories
· Report a possible security issue in a Rockwell Automation product
· Learn more about the vulnerability policy
Support
If you have any questions regarding the security issue(s) above and how to mitigate them, contact TechConnect for help. More information can be found at Contact Us | Rockwell Automation | US.
If you have any questions regarding this disclosure, please contact PSIRT
Email: rasecure@ra.rockwell.com
Legal Disclaimer
ROCKWELL AUTOMATION DOES NOT WARRANT THE COMPLETENESS, TIMELINESS OR ACCURACY OF ANY OF THE DATA CONTAINED IN THIS WEB SITE AND MAY MAKE CHANGES THERETO AT ANY TIME IN ITS SOLE DISCRETION WITHOUT NOTICE. FURTHER, ALL INFORMATION CONVEYED HEREBY IS PROVIDED TO USERS "AS IS." IN NO EVENT SHALL ROCKWELL BE LIABLE FOR ANY DAMAGES OF ANY KIND INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS PROFIT OR DAMAGE, EVEN IF ROCKWELL AUTOMATION HAVE BEEN ADVISED ON THE POSSIBILITY OF SUCH DAMAGES. ROCKWELL AUTOMATION DISCLAIMS ALL WARRANTIES WHETHER EXPRESSED OR IMPLIED IN RESPECT OF THE INFORMATION (INCLUDING SOFTWARE) PROVIDED HEREBY, INCLUDING THE IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, AND NON-INFRINGEMENT. Note that certain jurisdictions do not countenance the exclusion of implied warranties; thus, this disclaimer may not apply to you.
