Last Modified: Feb 04, 2026
Affected Product(s):
BIG-IP AFM
Known Affected Versions:
21.0.0
Fixed In:
21.0.0.1
Opened: Nov 28, 2025 Severity: 2-Critical
The BIG-IP system experiences repeated TMM crashes when handling DNS DoS traffic.
Traffic disrupted while tmm restarts.
This issue occurs on BIG-IP AFM version 21.0.0 with DNS DoS
None
Handled malformed packets.