On F5 BIG-IP 16.1.x versions prior to 16.1.2.2, 15.1.x versions prior to 15.1.5.1, 14.1.x versions prior to 14.1.4.6, and 13.1.x versions prior to 13.1.5, when an Active mode-enabled FTP profile is configured on a virtual server, undisclosed traffic can cause the virtual server to stop processing active FTP data channel connections. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated