Bug ID 512616: BD crash during brute force attack on cluster environement

Last Modified: Aug 19, 2026

Affected Product(s):
BIG-IP ASM(all modules)

Known Affected Versions:
11.6.0, 11.6.0 hf1, 11.6.0 hf2, 11.6.0 hf3, 11.6.0 hf4, 11.6.0 hf5, 11.6.0 hf6, 11.6.0 hf7, 11.6.0 hf8, 11.6.1, 11.6.1 hf1, 11.6.1 hf2, 11.6.2, 11.6.2 hf1, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3

Fixed In:
12.0.0

Opened: Mar 16, 2015

Severity: 2-Critical

Symptoms

A BD crash happens when there is a brute force attack on a blade environment.

Impact

BD crash, traffic sessions reset, failover.

Conditions

Brute force attack, blade environment.

Workaround

N/A

Fix Information

The blade system no longer experiences a BD crash when a brute force attack happens.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips