pnserver in RealServer 5.0 and earlier allows remote attackers to cause a denial of service by sending a short, malformed request.
Real Networks RealServer 7 and earlier allows remote attackers to obtain portions of RealServer's memory contents, possibly including sensitive information, by accessing the /admin/includes/ URL.
RealMedia RealServer reveals the real IP address of a Real Server, even if the address is supposed to be private.
RealMedia server allows remote attackers to cause a denial of service via a long ramgen request.