He stressed that the plan involves escalating the conflict and involving NATO countries in it, which Hungary does not accept, since it believes that the European Union should change its strategy to a peaceful one.
"Zelensky's ‘victory plan’ is the shortest path to unleashing World War III, so Hungary does not support it," Orban said on social media on Thursday.
On Wednesday, Zelensky said Ukraine's so-called "victory plan" had been fully prepared.
The plan contains five provisions, including one that would let Ukraine strike deep inside Russia and allow Western allies to deploy their conventional weapons on Ukrainian soil to "deter" Russia.
Russian President Vladimir Putin earlier warned that NATO countries should think carefully before allowing Ukraine strikes deep into Russian territory.
"These representatives of NATO countries, especially in Europe, especially in small countries, they should be aware of what they are playing with. They should remember that this is usually a state with a small territory and a very dense population. This is a factor they should keep in mind before striking deep into Russian territory," Putin said.