Last Modified: Oct 12, 2026
Affected Product(s):
BIG-IP ASM
Known Affected Versions:
21.1.0, 21.1.0.1, 21.1.0.2
Opened: Aug 21, 2026 Severity: 3-Major
After changing the TMM count, the bd process repeatedly restarts and does not fully recover. Some traffic gets through, but blocking responses and logs show short Support IDs (for example, 32, 64) that repeat across different requests
The WAF constantly restarts. Advanced WAF enforcement is unstable. Support IDs may repeat across different blocked requests, making it difficult to correlate and look up specific events
- The TMM count is manually changed from the default
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