CVE-2012-0923: Realnetworks Realplayer

High severity, CVSS 9.3. EPSS: 4.5% chance of exploitation in the next 30 days.

The RV20 codec in RealNetworks RealPlayer 11.x, 14.x, and 15.x before 15.02.71, and RealPlayer SP 1.0 through 1.1.5, does not properly handle the frame size array, which allows remote attackers to execute arbitrary code via a crafted RV20 RealVideo video stream.

Affected products

• Realnetworks Realplayer: version 14.0.0 only; version 14.0.1 only; version 14.0.1.609 only; version 14.0.1.633 only; version 14.0.2 only; version 14.0.3 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 2012-02-08. Last modified 2026-06-16.