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Fencer Vulns
critical 9.3

CVE-2009-0385 json

Integer signedness error in the fourxm_read_header function in libavformat/4xm.c in FFmpeg before revision 16846 allows remote attackers to…

published 2009-02-02 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-0389

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.7%
EPSS 6.7% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

Integer signedness error in the fourxm_read_header function in libavformat/4xm.c in FFmpeg before revision 16846 allows remote attackers to execute arbitrary code via a malformed 4X movie file with a large current_track value, which triggers a NULL pointer dereference.

Patch / fix

  • ffmpeg ffmpeg 0.6.3
  • ffmpeg Debian 14, Debian 13, Debian 12 0.svn20080206-16
  • mplayer Debian 14, Debian 13, Debian 12 1.0~rc2-14

debian advisories DEBIAN-CVE-2009-0385

Exploit prediction

6.66% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

References

Sources

Fencer Vulns 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.