Although slow lorises occupy a fairly broad geographic range, they are not common in these areas and are often out-competed by arboreal monkeys in areas where different species overlap. Since their secretive and nocturnal lifestyles make them difficult to observe, accurate population estimates in many areas are difficult to obtain. Other members of the genus are considered vulnerable or threatened by various agencies, and it is likely that with more research on N. coucang it may join these.
US Federal List: no special status
CITES: appendix ii
IUCN Red List of Threatened Species: vulnerable