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CVE-2009-4633

vorbis_dec.c in FFmpeg 0.5 uses an assignment operator when a comparison operator was intended,...

10.0 HighFix available

vorbis_dec.c in FFmpeg 0.5 uses an assignment operator when a comparison operator was intended, which might allow remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted file that modifies a loop counter and triggers a heap-based buffer overflow.

Exploit likelihood

7.88%Down 0.3 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 10.0

vorbis_dec.c in FFmpeg 0.5 uses an assignment operator when a comparison operator was intended, which might allow remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted file that modifies a loop counter and triggers a heap-based buffer overflow.

Record
CVE-2009-4633
CVSS 2.0
10.0 HighAV:N/AC:L/Au:N/C:C/I:C/A:C
Weakness
CWE-189
Updated
2026-11-02
CVE List No score

vorbis_dec.c in FFmpeg 0.5 uses an assignment operator when a comparison operator was intended, which might allow remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted file that modifies a loop counter and triggers a heap-based buffer overflow.

Record
CVE-2009-4633
Updated
2026-11-02
EUVDEUVD-2009-4598 No score

vorbis_dec.c in FFmpeg 0.5 uses an assignment operator when a comparison operator was intended, which might allow remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted file that modifies a loop counter and triggers a heap-based buffer overflow.

Record
EUVD-2009-4598
Updated
2026-11-03
GitHub AdvisoriesGHSA-pq8m-58c6-gxvf No score

vorbis_dec.c in FFmpeg 0.5 uses an assignment operator when a comparison operator was intended,...

vorbis_dec.c in FFmpeg 0.5 uses an assignment operator when a comparison operator was intended, which might allow remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted file that modifies a loop counter and triggers a heap-based buffer overflow.

Record
GHSA-pq8m-58c6-gxvf
Updated
2026-11-02
OSV No score

vorbis_dec.c in FFmpeg 0.5 uses an assignment operator when a comparison operator was intended, which might allow remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted file that modifies a loop counter and triggers a heap-based buffer overflow.

Record
CVE-2009-4633
Updated
2026-11-02
OSVDEBIAN-CVE-2009-4633 No score

vorbis_dec.c in FFmpeg 0.5 uses an assignment operator when a comparison operator was intended, which might allow remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted file that modifies a loop counter and triggers a heap-based buffer overflow.

Record
DEBIAN-CVE-2009-4633
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
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
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

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

In short

CVE-2009-4633 is a high vulnerability (CVSS 10.0) in Ffmpeg, published February 10, 2010. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 7.88%, the 94th percentile. Fixed in ffmpeg 4:0.5+svn20090706-3.

References

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