CVE-2010-4377: Heap-based buffer overflow in RealNetworks RealPlayer 11.0 through 11.1, RealPlayer SP 1.0 through 1.1.5, M...

Security readout for executives and security teams

A malicious Real Audio file could crash or take control of vulnerable RealPlayer installations. The issue is old, but it matters where legacy RealPlayer remains installed or associated with audio files. The source bundle does not show active exploitation or a current vendor-supported patch level. Exposure is most likely on endpoints or legacy systems that still have affected RealPlayer versions installed, especially where RealPlayer opens downloaded, emailed, or web-delivered Real Audio files. Treat this as a high-priority legacy software exposure. Business urgency depends on whether affected RealPlayer versions still exist in the environment. If present on user workstations, remediate quickly because exploitation only requires opening hostile media content. Mitigation focus: Inventory and remove affected RealPlayer versions where business use is unnecessary.; Check RealNetworks guidance for fixed versions or supported upgrade paths.; Disable RealPlayer file associations for Real Audio files where possible..

Prepared

Jun 28, 2026, 01:17 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.