All vulnerabilities

Servers and applications

CVE-2018-7557

The decode_init function in libavcodec/utvideodec.c in FFmpeg 2.8 through 3.4.2 allows remote attackers to cause a denial of service (Out of array read) via an AVI file with crafted dimensions within chroma subsampling data.

Severity
Medium 6.5
Published
28 Feb 2018
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
1.9% in the next 30 daysHigher than 79% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
Out-of-bounds read (CWE-125)
Attack
Over the network · No login needed · Needs someone to click or open something
Attacker can
Take it down
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Sources
NVD

Affected software

SoftwareAffected versions
FFmpegServers and applications · cpe:a:ffmpeg:ffmpeg
  • From 2.8 up to 3.4.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2018-7557
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2018-7557