A Federation colony world that suffered a catastrophic crop failure and was saved from starvation when the trader Carter Winston spent his personal fortune on relief supplies.
Cerberus is mentioned in the animated episode The Survivor. When the Enterprise recovers a man who appears to be the long-missing philanthropist Carter Winston, the crew recall his best-known act of generosity, the rescue of the Cerberus colony.
Some years earlier the colony's harvest had failed and its people faced famine. Winston used his own wealth to bring in enough food and goods to carry them through.
Doctor McCoy has a personal reason for gratitude, since his daughter was at school on Cerberus at the time. That makes the discovery that the rescued man is really a Vendorian spy working for the Romulans all the more bitter.