The FactoryTalk (FT) RNADiagReceiver service in Rockwell Automation Allen-Bradley FactoryTalk CPR9 through SR5 and RSLogix 5000 17 through 20 does not properly handle the return value from an unspecified function, which allows remote attackers to cause a denial of service (service outage) via a crafted packet.
Improper Input Validation The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly.