IBM App Connect Enterprise is an operating system from IBM Corporation. IBM App Connect Enterprise combines the existing industry-trusted IBM Integration Bus technology with IBM App Connect Professional and new cloud-native technology to provide a platform that meets the full integration needs of the modern digital enterprise. IBM App Connect Enterprise Certified Container version 4.2 contains a denial of service vulnerability that stems from a failure to properly process incoming error messages, which could be exploited by an attacker to cause a denial of service.