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Servers and applications

CVE-2011-3973

cavsdec.c in libavcodec in FFmpeg before 0.7.4 and 0.8.x before 0.8.3 allows remote attackers to cause a denial of service (incorrect write operation and application crash) via an invalid bitstream in a Chinese AVS video (aka CAVS) file, related to the decode_residual_block, check_for_slice, and cavs_decode_frame functions, a different vulnerability than CVE-2011-3362.

Severity
Medium 5.0
Published
2 Oct 2011
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
2.5% in the next 30 daysHigher than 84% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
CWE-399
Attack
Over the network · No login needed
Attacker can
Slow it down
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Sources
NVD

Affected software

SoftwareAffected versions
FFmpegServers and applications · cpe:a:ffmpeg:ffmpeg
  • Version 0.8.2
  • Version 0.8.1
  • Version 0.8.0
  • Version 0.7.2
All 28 release lines
  • Every version up to 0.7.3
  • 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 0.6
  • Version 0.6.1
  • Version 0.6.2
  • Version 0.7.1
  • Version 0.7.2
  • Version 0.8.0
  • Version 0.8.1
  • Version 0.8.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2011-3973
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2011-3973