Rockwell Automation Select Communication Modules
Where this vulnerability exists in the 1756 EN2* and 1756 EN3* products, it could allow a malicious user to perform remote code execution with persistence on the target system through maliciously crafted CIP messages. This includes the ability to modify, deny, and exfiltrate data passing through the device.  Where this vulnerability exists in the 1756-EN4* products, it could allow a malicious user to cause a denial-of-service condition by asserting the target system through maliciously crafted CIP messages. 