CVE-2004-0774: Realnetworks Helix Universal Mobile Server And Gateway

High severity, CVSS 7.8. EPSS: 1.9% chance of exploitation in the next 30 days.

RealNetworks Helix Universal Server 9.0.2 for Linux and 9.0.3 for Windows allows remote attackers to cause a denial of service (CPU and memory exhaustion) via a POST request with a Content-Length header set to -1.

Affected products

• Realnetworks Helix Universal Mobile Server And Gateway: up to and including 10.3.1.716
• Realnetworks Helix Universal Server: up to and including 9.0.4.958; version 9.0.2 only

Published 2004-11-03. Last modified 2026-06-16.