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Vulnerability record · CVE-2010-4391 · published 14 December 2010

CVE-2010-4391: Realnetworks realplayer memory buffer overflow vulnerability

RRealnetworks · Realplayer

Heap-based buffer overflow in RealNetworks RealPlayer 11.0 through 11.1, RealPlayer SP 1.0 through 1.1.5, and RealPlayer Enterprise 2.1.2 and 2.1.3 allows remote attackers to execute arbitrary code via a crafted value in an unspecified header field in an RMX file.

9.3 CVSS 2.0 High EPSS 6.6% · top 6.4% CWE-119 · Memory buffer overflow
9.3CVSS 2.0 base score
6.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
8References
16 Jun 2026Last modified by NVD

Description

Heap-based buffer overflow in RealNetworks RealPlayer 11.0 through 11.1, RealPlayer SP 1.0 through 1.1.5, and RealPlayer Enterprise 2.1.2 and 2.1.3 allows remote attackers to execute arbitrary code via a crafted value in an unspecified header field in an RMX file.

AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://osvdb.org/69851
http://service.real.com/realplayer/security/12102010_player/en/ Vendor Advisory
http://www.securitytracker.com/id?1024861
http://www.zerodayinitiative.com/advisories/ZDI-10-281
http://osvdb.org/69851
http://service.real.com/realplayer/security/12102010_player/en/ Vendor Advisory
http://www.securitytracker.com/id?1024861
http://www.zerodayinitiative.com/advisories/ZDI-10-281

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2011-4256Realnetworks realplayer code injection vulnerabilityThe RV30 codec in RealNetworks RealPlayer before 15.0.0 and Mac RealPlayer before 12.0.0.1703 does not initialize an unspecified index value, which a…EPSS 4.3%10.0CVE-2011-4246Realnetworks realplayer memory buffer overflow vulnerabilityThe AAC codec in RealNetworks RealPlayer before 15.0.0 and Mac RealPlayer before 12.0.0.1703 allows remote attackers to execute arbitrary code or cau…EPSS 4.0%10.0CVE-2011-4249Realnetworks realplayer improper input validation vulnerabilityArray index error in the RV30 codec in RealNetworks RealPlayer before 15.0.0 allows remote attackers to execute arbitrary code via unspecified vector…EPSS 3.3%10.0CVE-2011-4250Realnetworks realplayer vulnerabilityUnspecified vulnerability in the ATRC codec in RealNetworks RealPlayer before 15.0.0 and Mac RealPlayer before 12.0.0.1703 allows remote attackers to…EPSS 4.1%10.0CVE-2011-4253Realnetworks realplayer vulnerabilityUnspecified vulnerability in the RV20 codec in RealNetworks RealPlayer before 15.0.0 and Mac RealPlayer before 12.0.0.1703 allows remote attackers to…EPSS 4.1%10.0CVE-2011-4254Realnetworks realplayer code injection vulnerabilityRealNetworks RealPlayer before 15.0.0 allows remote attackers to execute arbitrary code via a crafted RTSP SETUP request.EPSS 3.4%10.0CVE-2011-4255Realnetworks realplayer vulnerabilityUnspecified vulnerability in RealNetworks RealPlayer before 15.0.0 and Mac RealPlayer before 12.0.0.1703 allows remote attackers to execute arbitrary…EPSS 4.1%10.0CVE-2011-4244Realnetworks realplayer memory buffer overflow vulnerabilityHeap-based buffer overflow in the RealVideo renderer in RealNetworks RealPlayer before 15.0.0 allows remote attackers to execute arbitrary code via u…EPSS 3.4%

Source: NIST National Vulnerability Database (record CVE-2010-4391), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.