Bug ID 2291609: ASM crashes when dynamic parameter name configured (rare configuration)

Last Modified: Jul 28, 2026

Affected Product(s):
BIG-IP None(all modules)

Fixed In:
21.1.0.1, 21.0.0.3, 17.5.1.8, 17.1.3.4

Opened: May 03, 2026

Severity: 3-Major

Symptoms

BD process crash

Impact

BIG-IP failover

Conditions

ASM policy attached to a virtual server and flow level parameter configured as dynamic parameter name

Workaround

N/A

Fix Information

The issue has been resolved, and the crash no longer occurs after applying the fix.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips