From the 9.5 SP1 download page...
Critical Update - Must be installed on the core server immediately after SP1 Install
LANDesk has released an update to 9.5 SP1 to address an issue, where under certain circumstances, vulscan can be stuck in a loop and generate excessive network traffic and prevent additional vulscan actions from running. For more information please see: Vulscan stuck in a loop following deployment of SP1 for LDMS 9.5
You should download the associated patch and install it on your core immediately after installing LMDS 9.5 SP1. Agents will be automatically updated the next time vulscan runs.