Bug ID 1037457: High CPU during specific dos mitigation

Last Modified: May 29, 2024

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

Fixed In:
17.0.0,,,, 13.1.5

Opened: Jul 29, 2021

Severity: 3-Major


CPU is high.


While the attack is mitigated on the BIG-IP system and does not reach the server, the CPU of the BIG-IP increases and this may impact other services on the BIG-IP device.


A dos attack with specific characteristic is active and the policy is configured in a specific way.



Fix Information

A specific high CPU scenario during dos attacks was fixed.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips