Last Modified: Apr 26, 2026
Affected Product(s):
BIG-IP TMOS
Known Affected Versions:
17.5.0, 17.5.1, 17.5.1.2, 17.5.1.3, 17.5.1.4, 17.5.1.5, 21.0.0, 21.0.0.1
Opened: Apr 10, 2026 Severity: 2-Critical
TMM crashes unexpectedly on BIG-IP VE running on Microsoft Azure when an accelerated networking virtual function (VF) is removed at runtime.
Traffic disruption. TMM crashes and must be restarted. If running in an HA pair, failover occurs.
- BIG-IP VE deployed on Microsoft Azure with Accelerated Networking enabled. - Azure platform performs host maintenance, live migration, or other operation that removes and restores accelerated networking virtual functions.
There is no workaround. Deploy BIG-IP VE in an HA (Active/Standby) configuration to minimize traffic disruption during a crash.
None