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Fencer Vulns
medium 6.5

CVE-2018-7751 json

The svg_probe function in libavformat/img2dec.c in FFmpeg through 3.4.2 allows remote attackers to cause a denial of service (Infinite Loop…

published 2018-04-24 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-19464

cvss
6.5
version 3.0, 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 svg_probe function in libavformat/img2dec.c in FFmpeg through 3.4.2 allows remote attackers to cause a denial of service (Infinite Loop) via a crafted XML file.

Patch / fix

  • ffmpeg Debian 14, Debian 13, Debian 12 7:3.4.3-1

debian advisories DEBIAN-CVE-2018-7751

  • ffmpeg Ubuntu 18.04 LTS 7:3.4.4-0ubuntu0.18.04.1

ubuntu advisories UBUNTU-CVE-2018-7751

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • ffmpeg-4 openSUSE Tumbleweed 4.4-5.2

opensuse advisories openSUSE-SU-2024:10754-1

  • ffmpeg Alpine 3.24, Alpine 3.23, Alpine 3.22 +14 more 3.4.3-r0
  • ffmpeg4 Alpine 3.22, Alpine 3.21, Alpine 3.20 +4 more 3.4.3-r0

alpine advisories ALPINE-CVE-2018-7751

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Exploit prediction

2.24% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 6.5 CVSS:3.0/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
  • CWE-835 Loop with Unreachable Exit Condition

References

Sources

Fencer Vulns 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.