← Vulnerability feed

Vulnerability record · CVE-2009-4244 · published 25 January 2010

CVE-2009-4244: Realnetworks realplayer memory buffer overflow vulnerability

RRealnetworks · Realplayer

Heap-based buffer overflow 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, 10.1, and 11.0; Linux RealPlayer 10; and Helix Player 10.x allows remote attackers to execute arbitrary code via an SIPR codec field with a small length value that triggers incorrect memory allocation.

9.3 CVSS 2.0 High EPSS 7.2% · top 5.9% CWE-119 · Memory buffer overflow
9.3CVSS 2.0 base score
7.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
16References
16 Jun 2026Last modified by NVD

Description

Heap-based buffer overflow 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, 10.1, and 11.0; Linux RealPlayer 10; and Helix Player 10.x allows remote attackers to execute arbitrary code via an SIPR codec field with a small length value that triggers incorrect memory allocation.

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

Affected products

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

References

LinkTags
http://secunia.com/advisories/38218 Vendor Advisory
http://securitytracker.com/id?1023489 Patch
http://service.real.com/realplayer/security/01192010_player/en/ PatchVendor Advisory
http://www.securityfocus.com/archive/1/509098/100/0/threaded
http://www.securityfocus.com/bid/37880
http://www.vupen.com/english/advisories/2010/0178 PatchVendor Advisory
http://www.zerodayinitiative.com/advisories/ZDI-10-008/ Patch
https://exchange.xforce.ibmcloud.com/vulnerabilities/55797
http://secunia.com/advisories/38218 Vendor Advisory
http://securitytracker.com/id?1023489 Patch
http://service.real.com/realplayer/security/01192010_player/en/ PatchVendor Advisory
http://www.securityfocus.com/archive/1/509098/100/0/threaded
http://www.securityfocus.com/bid/37880
http://www.vupen.com/english/advisories/2010/0178 PatchVendor Advisory
http://www.zerodayinitiative.com/advisories/ZDI-10-008/ Patch
https://exchange.xforce.ibmcloud.com/vulnerabilities/55797

Track CVE-2009-4244 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

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-2009-4244), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.