What’s Vulnerable › Vulnerabilities

CVE-2009-4248

• Severity: critical (CVSS 9.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 6.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2010-01-25 · updated 2026-06-16
• Weakness: CWE-119

Description

Buffer overflow in the RTSPProtocol::HandleSetParameterRequest function in client/core/rtspprotocol.cpp in RealNetworks RealPlayer 10, RealPlayer 10.5 6.0.12.1040 through 6.0.12.1741, RealPlayer 11 11.0.0 through 11.0.4, RealPlayer Enterprise, Mac RealPlayer 10 and 10.1, Linux RealPlayer 10, and Helix Player 10.x allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted RTSP SET_PARAMETER request.

Affected products

• RealNetworks Helix Player: 10.0, 11.0.0, 11.0.1
• RealNetworks Realplayer: 10.0, 10.5, 11.0, 11.0.1, 11.0.2, 11.0.3 (+4)
• RealNetworks Realplayer Enterprise: all versions
• RealNetworks Realplayer Sp: 1.0.0, 1.0.1

References

• http://lists.helixcommunity.org/pipermail/client-cvs/2008-January/003756.html
• http://lists.helixcommunity.org/pipermail/client-cvs/2008-January/003759.html
• http://lists.helixcommunity.org/pipermail/client-dev/2008-January/004591.html
• http://secunia.com/advisories/38218
• http://secunia.com/advisories/38450
• http://securitytracker.com/id?1023489
• http://service.real.com/realplayer/security/01192010_player/en/
• http://www.redhat.com/support/errata/RHSA-2010-0094.html
• http://www.securityfocus.com/bid/37880
• http://www.vupen.com/english/advisories/2010/0178
• https://bugzilla.redhat.com/show_bug.cgi?id=561361
• https://exchange.xforce.ibmcloud.com/vulnerabilities/55801

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