The Serious engine for games like Alpha Black Zero and Nitro family fails to limit the amount of new players joining a game, allowing for a denial of service. Only one UDP packet is needed to create a fake player.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/35198/ssfakep.txt
Source: https://packetstormsecurity.com/files/35198/ssfakep.txt.html