CVE-2010-0120: Realnetworks Realplayer

High severity, CVSS 9.3. EPSS: 5.7% chance of exploitation in the next 30 days.

Heap-based buffer overflow in RealNetworks RealPlayer 11.0 through 11.1 and RealPlayer SP 1.0 through 1.1.4 on Windows allows remote attackers to execute arbitrary code via large size values in QCP audio content.

Affected products

• Realnetworks Realplayer: version 11.0 only; version 11.1 only
• Realnetworks Realplayer SP: version 1.0.0 only; version 1.0.1 only; version 1.0.2 only; version 1.0.5 only; version 1.1 only; version 1.1.1 only; …

Published 2010-08-30. Last modified 2026-06-16.