All vulnerabilities

Servers and applications

CVE-2017-7866

FFmpeg before 2017-01-23 has an out-of-bounds write caused by a stack-based buffer overflow related to the decode_zbuf function in libavcodec/pngdec.c.

Severity
Critical 9.8
Published
14 Apr 2017
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
2.5% in the next 30 daysHigher than 84% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
Out-of-bounds write (CWE-787)
Attack
Over the network · No login needed · No user action needed
Attacker can
Read data · Change data · Take it down
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Sources
NVD

Affected software

SoftwareAffected versions
FFmpegServers and applications · cpe:a:ffmpeg:ffmpeg
  • Every version up to 2.8.9

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2017-7866
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2017-7866