In F5 BIG-IP LTM AAM AFM Analytics APM ASM DNS Edge Gateway GTM Link Controller PEM WebAccelerator and WebSafe software version 13.0.0 12.0.0 - 12.1.2 11.6.0 - 11.6.1 and 11.5.0 - 11.5.4 in some circumstances Traffic Management Microkernel (TMM) does not properly handle certain malformed TLS1.2 records which allows remote attackers to cause a denial-of-service (DoS) or possible remote command execution on the BIG-IP system.