Last Modified: Mar 03, 2026
Affected Product(s):
BIG-IP TMOS
Known Affected Versions:
17.1.0, 17.1.0.1, 17.1.0.2, 17.1.0.3, 17.1.1, 17.1.1.1, 17.1.1.2, 17.1.1.3, 17.1.1.4, 17.1.2, 17.1.2.1, 17.1.2.2, 17.1.3, 17.1.3.1, 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: Feb 26, 2026 Severity: 3-Major
If a Client Side Defense profile is configured with an API Domain Pool but there is no route to the pool, it will silently fail and just sent an empty 200 response.
Connections work but it is difficult to determine why the Client Side Defense Profile is failing.
Client Side Defense profile configured with an API Domain Pool and there is no route to the pool.
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