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Fencer Intel
medium 6.5

CVE-2018-6621 json

The decode_frame function in libavcodec/utvideodec.c in FFmpeg through 3.2 allows remote attackers to cause a denial of service (out of arr…

published 8y ago modified 4mo ago also EUVD-2018-18368

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.2%
EPSS 2.2% chance of exploitation in 30 days, percentile 82%
public exploits
0
none known

Summary

The decode_frame function in libavcodec/utvideodec.c in FFmpeg through 3.2 allows remote attackers to cause a denial of service (out of array read) via a crafted AVI file.

Patch / fix

  • ffmpeg Debian 14, Debian 13, Debian 12 7:3.4.2-1

debian advisories DEBIAN-CVE-2018-6621

  • ffmpeg-4 openSUSE Tumbleweed 4.4-5.2
  • ffmpeg Package Hub 12 SP2 3.4.2-14.1

opensuse advisories openSUSE-SU-2024:10754-1openSUSE-SU-2018:0470-1openSUSE-SU-2018:0476-1

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Exploit prediction

2.16% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.