The steps required to install maintenance packages on a WebSphere® ESB installation that was created using a CIP are the same as for any other installation of WebSphere ESB.
Details of how to apply maintenance to a WebSphere ESB installation see the related task on Installing maintenance packages.
Details of how to apply maintenance to a WebSphere ESB installation using a customized installation package, see the related task on Installing fix packs and refresh packs with customized installation packages.