CVE-2009-4245

Heap-based buffer overflow in RealNetworks RealPlayer 10, RealPlayer 10.5 6.0.12.1040 through 6.0...

9.3 High

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 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 compressed GIF file, related to gifcodec.cpp and gifimage.cpp.

Exploit likelihood

6.81%Up 0.2 points since Feb 4, 2022

What each source reports

NVD Score used 9.3

Record: CVE-2009-4245
CVSS 2.0: 9.3 HighAV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness: CWE-119
Updated: 2026-11-02

CVE List No score

Record: CVE-2009-4245
Updated: 2026-11-02

EUVDEUVD-2009-4214 No score

Record: EUVD-2009-4214
Updated: 2026-11-03

GitHub AdvisoriesGHSA-89x4-gm7p-7fr8 No score

Heap-based buffer overflow in RealNetworks RealPlayer 10, RealPlayer 10.5 6.0.12.1040 through 6.0...

Record: GHSA-89x4-gm7p-7fr8
Weakness: CWE-119
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`HelixPlayer` Red Hat:enterprise_linux:4::as From an advisory covering 8 CVEs	before 1:1.0.6-1.el4_8.1	1:1.0.6-1.el4_8.1
`HelixPlayer-debuginfo` Red Hat:enterprise_linux:4::as From an advisory covering 8 CVEs	before 1:1.0.6-1.el4_8.1	1:1.0.6-1.el4_8.1
`HelixPlayer` Red Hat:enterprise_linux:4::desktop From an advisory covering 8 CVEs	before 1:1.0.6-1.el4_8.1	1:1.0.6-1.el4_8.1
`HelixPlayer-debuginfo` Red Hat:enterprise_linux:4::desktop From an advisory covering 8 CVEs	before 1:1.0.6-1.el4_8.1	1:1.0.6-1.el4_8.1
`HelixPlayer` Red Hat:enterprise_linux:4::es From an advisory covering 8 CVEs	before 1:1.0.6-1.el4_8.1	1:1.0.6-1.el4_8.1
`HelixPlayer-debuginfo` Red Hat:enterprise_linux:4::es From an advisory covering 8 CVEs	before 1:1.0.6-1.el4_8.1	1:1.0.6-1.el4_8.1
`HelixPlayer` Red Hat:enterprise_linux:4::ws From an advisory covering 8 CVEs	before 1:1.0.6-1.el4_8.1	1:1.0.6-1.el4_8.1
`HelixPlayer-debuginfo` Red Hat:enterprise_linux:4::ws From an advisory covering 8 CVEs	before 1:1.0.6-1.el4_8.1	1:1.0.6-1.el4_8.1

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2009-4245 is a high vulnerability (CVSS 9.3) in Realnetworks Helix Player, published January 25, 2010. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 6.81%, the 94th percentile. No source names a fixed version.

References

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