CVE-2005-2629: Realnetworks Helix Player

Medium severity, CVSS 5.1. EPSS: 12.8% chance of exploitation in the next 30 days.

Integer overflow in RealNetworks RealPlayer 8, 10, and 10.5, RealOne Player 1 and 2, and Helix Player 10.0.0 allows remote attackers to execute arbitrary code via an .rm movie file with a large value in the length field of the first data packet, which leads to a stack-based buffer overflow, a different vulnerability than CVE-2004-1481.

Affected products

• Realnetworks Helix Player: version 1.0 only; version 1.0.1 only; version 1.0.2 only; version 1.0.3 only; version 1.0.4 only; version 1.0.5 only
• Realnetworks Realone Player: version 1.0 only; version 2.0 only
• Realnetworks Realplayer: any version; version 8.0 only; version 10.0 only; version 10.5 only; version 10.5_6.0.12.1040 only; version 10.5_6.0.12.1053 only; …

Published 2005-11-18. Last modified 2026-06-16.