Upvote:0
you will be just in the transit-area. if you don't want to leave this area, you don't need any transit-visa.
had the same question, when i was traveling from vienna to hongkong via Sheremetyevo Airport in Moscow. I just stayed in the (quite boring) transit area.
just if you have to check out your luggage and check in again (in case you booked 2 different tickets at 2 different airlines and no check-through is possible) you would need to leave the transit-area and would be in need of a transit-visa