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Fencer Vulns
medium 5.3

CVE-2023-6602 json

Ffmpeg: improper handling of input format in tty demuxer of ffmpeg

published 2024-12-31 22 mo ago modified 2026-07-18 3 mo ago also EUVD-2023-58825 , JLSEC-2025-142

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 43%
public exploits
0
none known

Summary

A flaw was found in FFmpeg's TTY Demuxer. This vulnerability allows possible data exfiltration via improper parsing of non-TTY-compliant input files in HLS playlists.

Patch / fix

  • julia FFMPEG_jll 6.1.1+0
  • julia FFplay_jll 7.1.0+0
  • ffmpeg ffmpeg 4.3.9, 4.4.6, 5.1.7, 6.1.3, 7.0.3, 7.1.1
  • ffmpeg Debian 12 7:5.1.7-0+deb12u1
  • ffmpeg Debian 14, Debian 13 7:7.1.1-1

debian advisories DEBIAN-CVE-2023-6602

  • ffmpeg-9 openSUSE Tumbleweed 9.0.2-5.1
  • ffmpeg-4 openSUSE Tumbleweed 4.4.8-6.1
  • ffmpeg-7 openSUSE Leap 16.0 7.1.5-160000.1.1
  • ffmpeg-8 openSUSE Tumbleweed 8.1.2-5.1
  • ffmpeg-7 openSUSE Tumbleweed 7.1.5-2.1

opensuse advisories openSUSE-SU-2026:12417-1openSUSE-SU-2026:12064-1openSUSE-SU-2026:21877-1openSUSE-SU-2026:11794-1openSUSE-SU-2026:11665-1

  • ffmpeg Alpine 3.24, Alpine 3.23 7.1.1-r0
  • ffmpeg Alpine 3.24, Alpine 3.23 8.0-r0

alpine advisories ALPINE-CVE-2023-6602

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

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-2023-6602 updated cvss 5.3

ffmpeg: Improper Handling of Input Format in TTY Demuxer of 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
Proof of concept is public
Automatable
yes
Technical impact
partial
Assessed
22 mo ago

Exploit prediction

0.51% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2334338 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
OSV 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected packages

ecosystem package affected fixed in
julia FFMPEG_jll
<6.1.1+0
6.1.1+0
julia FFplay_jll
<7.1.0+0
7.1.0+0

Classification

Weakness
  • CWE-99 Improper Control of Resource Identifiers

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.

CPEs and fixed versions use Anchore's correction of NVD's data: Add affected version ranges.