CVE-2011-2945: Realnetworks Realplayer

High severity, CVSS 9.3. EPSS: 4.2% chance of exploitation in the next 30 days.

Heap-based buffer overflow in RealNetworks RealPlayer 11.0 through 11.1 and 14.0.0 through 14.0.5 and RealPlayer SP 1.0 through 1.1.5 allows remote attackers to execute arbitrary code via a crafted SIPR stream.

Affected products

• Realnetworks Realplayer: version 11.0 only; version 11.1 only; version 14.0.0 only; version 14.0.1 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 2011-08-18. Last modified 2026-06-16.