The Traffic Management Microkernel (TMM) in F5 BIG-IP LTM AAM AFM Analytics APM ASM GTM Link Controller and BIG-IP PEM before 11.4.1 HF10 11.5.x before 11.5.4 and 11.6.x before 11.6.0 HF6 and BIG-IP PSM before 11.4.1 HF10 does not properly handle TCP options which allows remote attackers to cause a denial of service via unspecified vectors related to the tm.minpathmtu database variable.