UpHeron
All vulnerabilities

Servers and applications

CVE-2011-3940

nsvdec.c in libavcodec in FFmpeg 0.7.x before 0.7.12 and 0.8.x before 0.8.11, and in Libav 0.5.x before 0.5.9, 0.6.x before 0.6.6, 0.7.x before 0.7.5, and 0.8.x before 0.8.1, allows remote attackers to cause a denial of service (out-of-bounds read and write) via a crafted NSV file that triggers "use of uninitialized streams."

Severity
Medium 6.8
Published
20 Aug 2012
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
2.7% in the next 30 daysHigher than 86% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Memory buffer errors (CWE-119)
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 0.8.10
  • Version 0.8.8
  • Version 0.8.7
  • Version 0.8.6
All 12 release lines
  • Version 0.7.1
  • Version 0.7.2
  • Version 0.7.6
  • Version 0.7.7
  • Version 0.7.8
  • Version 0.7.9
  • Version 0.7.11
  • Version 0.8.5
  • Version 0.8.6
  • Version 0.8.7
  • Version 0.8.8
  • Version 0.8.10

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2011-3940
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2011-3940