CVE-2005-0189: Realnetworks Realone Player

High severity, CVSS 7.5. EPSS: 6.4% chance of exploitation in the next 30 days.

Stack-based buffer overflow in the HandleAction function in RealPlayer 10.5 (6.0.12.1040) and earlier allows remote attackers to execute arbitrary code via a long ShowPreferences argument.

Affected products

• Realnetworks Realone Player: version 1.0 only; version 2.0 only
• Realnetworks Realplayer: version 10.0 only; version 10.0_6.0.12.690 only; version 10.0_beta only; version 10.5 only; version 10.5_6.0.12.1016_beta only; version 10.5_6.0.12.1040 only

Published 2004-10-06. Last modified 2026-06-16.