CVE-2009-4636

FFmpeg 0.5 allows remote attackers to cause a denial of service (hang) via a crafted file that...

4.3 MediumFix available

FFmpeg 0.5 allows remote attackers to cause a denial of service (hang) via a crafted file that triggers an infinite loop.

Exploit likelihood

3.03%Down 0.4 points since Feb 4, 2022

What each source reports

NVD Score used 4.3

FFmpeg 0.5 allows remote attackers to cause a denial of service (hang) via a crafted file that triggers an infinite loop.

Record: CVE-2009-4636
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness: CWE-94
Updated: 2026-11-02

CVE List No score

FFmpeg 0.5 allows remote attackers to cause a denial of service (hang) via a crafted file that triggers an infinite loop.

Record: CVE-2009-4636
Updated: 2026-11-02

EUVDEUVD-2009-4601 No score

FFmpeg 0.5 allows remote attackers to cause a denial of service (hang) via a crafted file that triggers an infinite loop.

Record: EUVD-2009-4601
Updated: 2026-11-03

GitHub AdvisoriesGHSA-9ph5-24p7-567p No score

FFmpeg 0.5 allows remote attackers to cause a denial of service (hang) via a crafted file that...

FFmpeg 0.5 allows remote attackers to cause a denial of service (hang) via a crafted file that triggers an infinite loop.

Record: GHSA-9ph5-24p7-567p
Weakness: CWE-94
Updated: 2026-11-02

OSV No score

FFmpeg 0.5 allows remote attackers to cause a denial of service (hang) via a crafted file that triggers an infinite loop.

Record: CVE-2009-4636
Updated: 2026-11-02

OSVDEBIAN-CVE-2009-4636 No score

FFmpeg 0.5 allows remote attackers to cause a denial of service (hang) via a crafted file that triggers an infinite loop.

Record: DEBIAN-CVE-2009-4636
Updated: 2026-11-02

Affected products

ffmpeg

Affected packages

Affected packages
Package	Affected	Fixed
`ffmpeg` Debian:12	before 4:0.5+svn20090706-3	4:0.5+svn20090706-3
`ffmpeg` Debian:13	before 4:0.5+svn20090706-3	4:0.5+svn20090706-3
`ffmpeg` Debian:14	before 4:0.5+svn20090706-3	4:0.5+svn20090706-3
`ffmpeg-debian` Debian:5.0 From an advisory covering 9 CVEs	before 0.svn20080206-18+lenny1, plus listed versions 0.svn20080206-160.svn20080206-170.svn20080206-17+lenny10.svn20080206-18	0.svn20080206-18+lenny1

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-2009-4636 is a medium vulnerability (CVSS 4.3) in Ffmpeg, published February 10, 2010. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.03%, the 87th percentile. Fixed in ffmpeg 4:0.5+svn20090706-3.

References

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