Last Modified: Jul 28, 2026
Affected Product(s):
BIG-IP TMOS
Known Affected Versions:
21.1.0
Fixed In:
21.1.0.1
Opened: May 29, 2026 Severity: 3-Major
The MCPD process crashes and restarts unexpectedly, generating a core file
MCPD crashes and restarts, causing TMM restart and datapath disruption
- BIG-IP version 21.1.0 - HA pair configuration (Active/Standby) - Virtual servers configured with deferred status recalculation active (standard LTM configuration) - Crash occurs during the event-loop-driven timer callback for - Virtual Address status recalculation
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