CVE-2009-4244
CVE-2009-4244 is a critical-severity vulnerability in Realnetworks Realplayer with a CVSS 2.0 base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.
Key facts
- Severity: Critical (CVSS 2.0 base score 9.3)
- EPSS exploit prediction: 7% (94th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-119
- Affected product: Realnetworks Realplayer
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2009-4244?
- 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.
- How severe is CVE-2009-4244?
- CVE-2009-4244 has a CVSS 2.0 base score of 9.3, rated critical severity.
- Is CVE-2009-4244 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2009-4244?
- CVE-2009-4244 primarily affects Realnetworks Realplayer. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2009-4244?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2009-4244 published?
- CVE-2009-4244 was published on 2010-01-25 and last updated on 2026-06-16.
References
- http://secunia.com/advisories/38218
- http://securitytracker.com/id?1023489
- http://service.real.com/realplayer/security/01192010_player/en/
- http://www.securityfocus.com/archive/1/509098/100/0/threaded
- http://www.securityfocus.com/bid/37880
- http://www.vupen.com/english/advisories/2010/0178
- http://www.zerodayinitiative.com/advisories/ZDI-10-008/
- https://exchange.xforce.ibmcloud.com/vulnerabilities/55797
Affected products (18)
- cpe:2.3:a:realnetworks:realplayer:10.0:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer:10.5:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer:11.0:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer:11.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer:11.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer:11.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer:11.0.4:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer:11.0.5:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer_enterprise:*:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer_sp:1.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer_sp:1.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer:10.1:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:helix_player:10.0:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:helix_player:11.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:helix_player:11.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer:10.0:*:linux:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer:11.0.0:*:linux:*:*:*:*:*
- cpe:2.3:a:realnetworks:realplayer:11.0.1:*:linux:*:*:*:*:*
More vulnerabilities in Realnetworks Realplayer
- CVE-2011-4256 — Critical (CVSS 10.0): The RV30 codec in RealNetworks RealPlayer before 15.0.0 and Mac RealPlayer before 12.0.0.1703 does not initialize an…
- CVE-2011-4255 — Critical (CVSS 10.0): Unspecified vulnerability in RealNetworks RealPlayer before 15.0.0 and Mac RealPlayer before 12.0.0.1703 allows remote…
- CVE-2011-4254 — Critical (CVSS 10.0): RealNetworks RealPlayer before 15.0.0 allows remote attackers to execute arbitrary code via a crafted RTSP SETUP…
- CVE-2011-4253 — Critical (CVSS 10.0): Unspecified vulnerability in the RV20 codec in RealNetworks RealPlayer before 15.0.0 and Mac RealPlayer before…
- CVE-2011-4250 — Critical (CVSS 10.0): Unspecified vulnerability in the ATRC codec in RealNetworks RealPlayer before 15.0.0 and Mac RealPlayer before…
- CVE-2011-4249 — Critical (CVSS 10.0): Array index error in the RV30 codec in RealNetworks RealPlayer before 15.0.0 allows remote attackers to execute…
All CVEs affecting Realnetworks Realplayer →
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