On versions 15.0.0-15.0.1.1 14.1.0-14.1.2.2 14.0.0-14.0.1 13.1.0-13.1.3.2 12.1.0-12.1.5 and 11.5.2-11.6.5.1 BIG-IP virtual servers with Loose Initiation enabled on a FastL4 profile may be subject to excessive flow usage under undisclosed conditions.