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Servers and applications

CVE-2014-5271

Heap-based buffer overflow in the encode_slice function in libavcodec/proresenc_kostya.c in FFMpeg before 1.1.14, 1.2.x before 1.2.8, 2.x before 2.2.7, and 2.3.x before 2.3.3 and Libav before 10.5 allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via unspecified vectors.

Severity
High 7.5
Published
3 Nov 2014
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
4.7% in the next 30 daysHigher than 91% 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:L/Au:N/C:P/I:P/A:P
Sources
NVD

Affected software

SoftwareAffected versions
FFmpegServers and applications · cpe:a:ffmpeg:ffmpeg
  • Version 2.3.2
  • Version 2.3
  • Version 2.2.4
  • Version 2.2
All 37 release lines
  • Every version up to 1.1.13
  • Version 1.1
  • Version 1.1.1
  • Version 1.1.2
  • Version 1.1.3
  • Version 1.1.4
  • Version 1.1.5
  • Version 1.1.6
  • Version 1.1.7
  • Version 1.1.8
  • Version 1.1.9
  • Version 1.1.10
  • Version 1.1.11
  • Version 1.1.12
  • Version 1.2
  • Version 1.2.1
  • Version 1.2.3
  • Version 1.2.4
  • Version 1.2.5
  • Version 1.2.6
  • Version 1.2.7
  • Version 2.0
  • Version 2.0.1
  • Version 2.0.2
  • Version 2.0.3
  • Version 2.0.4
  • Version 2.0.5
  • Version 2.1
  • Version 2.1.1
  • Version 2.1.2
  • Version 2.1.3
  • Version 2.1.4
  • Version 2.1.5
  • Version 2.2
  • Version 2.2.4
  • Version 2.3
  • Version 2.3.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2014-5271
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2014-5271