Last Modified: Aug 19, 2026
Affected Product(s):
BIG-IP ASM
Known Affected Versions:
12.1.0, 12.1.0 hf1, 12.1.0 hf2, 12.1.1, 12.1.1 hf1, 12.1.1 hf2, 12.1.2, 12.1.2 hf1, 12.1.2 hf2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 12.1.5.3, 12.1.6
Fixed In:
13.0.0
Opened: Oct 21, 2016 Severity: 3-Major
Performance is affected on the JS challenge.
1. These responses consume more CPU and more Bandwidth than needed. 2. Client-side latency is degraded. 3. More disk space is utilized than needed
The following is turned on in the application dos configuration : CS challenge, or PBD challenge when Suspicious browsers are disabled or the Device-ID challenge.
None.
Some of the JS challenge have better performance now.