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Servers and applications

CVE-2011-3946

The ff_h264_decode_sei function in libavcodec/h264_sei.c in FFmpeg before 0.10 allows remote attackers to have an unspecified impact via crafted Supplemental enhancement information (SEI) data, which triggers an infinite loop.

Severity
Medium 6.8
Published
9 Dec 2013
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
5.7% in the next 30 daysHigher than 93% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
CWE-399
Attack
Over the network · No login needed
Attacker can
Read some data · Change some data · Slow it down
CVSS vector
AV:N/AC:M/Au:N/C:P/I:P/A:P
Sources
NVD

Affected software

SoftwareAffected versions
FFmpegServers and applications · cpe:a:ffmpeg:ffmpeg
  • Version 0.9
  • Version 0.8.11
  • Version 0.8.10
  • Version 0.8.8
All 51 release lines
  • Every version up to 0.9.1
  • Version 0.3
  • Version 0.3.1
  • Version 0.3.2
  • Version 0.3.3
  • Version 0.3.4
  • Version 0.4.0
  • Version 0.4.2
  • Version 0.4.3
  • Version 0.4.4
  • Version 0.4.5
  • Version 0.4.6
  • Version 0.4.7
  • Version 0.4.8
  • Version 0.4.9-pre1
  • Version 0.5
  • Version 0.5.1
  • Version 0.5.2
  • Version 0.5.3
  • Version 0.5.4
  • Version 0.5.4.5
  • Version 0.5.4.6
  • Version 0.5.5
  • Version 0.6
  • Version 0.6.1
  • Version 0.6.2
  • Version 0.6.3
  • Version 0.7
  • Version 0.7.1
  • Version 0.7.2
  • Version 0.7.3
  • Version 0.7.4
  • Version 0.7.5
  • Version 0.7.6
  • Version 0.7.7
  • Version 0.7.8
  • Version 0.7.9
  • Version 0.7.11
  • Version 0.7.12
  • Version 0.8.0
  • Version 0.8.1
  • Version 0.8.2
  • Version 0.8.5
  • Version 0.8.5.3
  • Version 0.8.5.4
  • Version 0.8.6
  • Version 0.8.7
  • Version 0.8.8
  • Version 0.8.10
  • Version 0.8.11
  • Version 0.9

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2011-3946
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2011-3946