The difficulty in answering this question lies in the difficulty of defining the word cult. Cult has been used so widely and carelessly that it has pretty much lost any objective definition. There is also the distinctly negative judgement this word implies that makes it improper for academic discourse. But, disregarding what I've just said, the answer is no. If we HAVE to draw a common thread between communities that are labeled as cults we would probably settle with radicalism and a central idealized (living) figure. Buddhist monasteries are significantly less hierarchical then their semitic counterparts and radicalism is, of course, relative. If we judge "radical" based on the number of people over the course of history who have expressed buddhist ideology then it is one of the world's most mainstream schools of thought. If we judge "radical" based on Judeo-Christian principles then probably (even though, other than the concept of reincarnation, buddhist and semitic principles are strikingly similar). Perhaps you could tell us your motivation behind asking this question. If you give a more specific question you will receive a more specific answer.

tl;dr Probably not though question is inherently flawed because cult isn't an objective term.