Stack-based buffer overflow in RealNetworks Helix Server 12.x, 13.x, and 14.x before 14.2, and Helix Mobile Server 12.x, 13.x, and 14.x before 14.2, allows remote attackers to execute arbitrary code via a long string in an RTSP request.
Buffer overflow in rn5auth.dll in RealNetworks Helix Server and Helix Mobile Server 14.x before 14.3.x allows remote attackers to execute arbitrary code via crafted authentication credentials.