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Fencer Intel
medium 4.3

CVE-2009-4636 json

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

published 16y ago modified 4mo ago also EUVD-2009-4601

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.0%
EPSS 3.0% chance of exploitation in 30 days, percentile 87%
public exploits
0
none known

Summary

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

Patch / fix

  • ffmpeg Debian 14, Debian 13, Debian 12 4:0.5+svn20090706-3

debian advisories DEBIAN-CVE-2009-4636

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Exploit prediction

3.03% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • scarybeastsecurity.blogspot.com http://scarybeastsecurity.blogspot.com/2009/09/patching-ffmpeg-into-shape.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.