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Fencer Vulns
critical 9.8

CVE-2023-39018 json

FFmpeg discovered to contain a code injection vulnerability in the component net.bramp.ffmpeg.FFmpeg.<constructor>

published 2023-07-28 3 y ago modified 2026-09-10 1 mo ago also GHSA-2jx3-fx5f-r2c6 , EUVD-2023-1927

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 60%
public exploits
0
none known

Summary

FFmpeg 0.7.0 and below was discovered to contain a code injection vulnerability in the component net.bramp.ffmpeg.FFmpeg.<constructor>. This vulnerability is exploited via passing an unchecked argument. NOTE: this is disputed by multiple third parties because there are no realistic use cases in which FFmpeg.java uses untrusted input for the path of the executable file.

Patch / fix

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-39018 updated

ffmpeg: Code injection vulnerability in the component net.bramp.ffmpeg.FFmpeg

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.93% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/bramp/ffmpeg-cli-wrapper/issues/291 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code

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.