Kuala Lumpur is not itself a cruise port, but is served by the port of Kelang. Added up, Kelang is the port of embarkation for one cruises anually from Norwegian to Asia.
Overall cruises from Kuala Lumpur are somewhat affordable compared to other ports. See the diagram below for the average cost per day by month (Cruises only depart from Kuala Lumpur between January and December). Prices are approximately equal throughout the year.