To change the threshold value under the timing vulnerability signature, do the following:
Open the vulnerability profile and search for the Threat ID
Click on the "Pencil" icon, before the threat name, as shown below:
The Edit Time Attribute pop window is displayed. Set the threshold as required:
Make sure the Exception is enabled
Commit the changes.
Note: Not all threats/vulnerability signatures can be modified. There are signatures that do not have any changeable attributes. For example, TID 30003 is a signature for which the attributes cannot be modified. Also, attributes for threat IDs can only be changed if the particular Palo Alto Networks firewall has a valid threat licenses. Otherwise, commits would fail with the following error:
Error: Profile compiler : can not set time attribute on tid <>.