Bug ID 454784: in VPE %xx symbols such as the variable assign agent might be invalidly decoded.

Last Modified: Aug 19, 2026

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

Known Affected Versions:
11.5.1, 11.5.1 hf1, 11.5.1 hf2, 11.5.1 hf3, 11.5.1 hf4, 11.5.1 hf5, 11.5.1 hf6, 11.5.1 hf7, 11.5.1 hf8, 11.5.1 hf9, 11.5.1 hf10, 11.5.1 hf11, 11.5.2, 11.5.2 hf1, 11.5.3, 11.5.3 hf1, 11.5.3 hf2, 11.5.4, 11.5.4 hf1, 11.5.4 hf2, 11.5.4 hf3, 11.5.4 hf4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10

Fixed In:
11.6.0

Opened: Mar 31, 2014

Severity: 4-Minor

Symptoms

in VPE %xx symbols might invalidly decode If user assignment string contains percent encoded symbols like: "%60", "%7E", "%21", "%40", "%23" etc Saved string is written properly but re-readed and displayed as character "`", "~", "!", "@", "#" Therefore new saving might cause uneeded re-encoding of such symbols

Impact

Medium. Customer is confused and might not be able to modify saved and then loaded string

Conditions

Variable assign agent. Assigned string contains %xx symbol

Workaround

1. Direct bigip.conf editing 2. Saving proper string in other location and copy paste before modification so %xx encoded symbols would stay preserved

Fix Information

Issue fixed, encoding doesn't reencode/redecode symbols anymore.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips