Last Modified: Feb 03, 2026
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
17.5.1, 17.5.1.2, 17.5.1.3
Fixed In:
17.5.1.4
Opened: Aug 25, 2025 Severity: 2-Critical
Tmm crashes while passing dtls traffic.
Tmm crashes
An iRule uses the 'virtual' command to loop into a dtls virtual as a second virtual, and using serverside dtls on the first virtual.
Do not use the virtual command or any other form to loop into dtls virtual.
Fixed a tmm crash with a dtls virtual server.