F5 BIG-IP is an application delivery platform from F5 that integrates network traffic orchestration, load balancing, intelligent DNS, remote access policy management, etc. A denial of service vulnerability exists in F5 BIG-IP AFM, where undisclosed traffic could cause TMM to crash when an AFM NAT policy with target NAT rules is configured on a FastL4 virtual server. A remote, unauthenticated attacker can exploit this vulnerability to cause a denial of service on the BIG-IP system.