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Fencer Intel
medium 5.3

CVE-2023-6604 json

Ffmpeg: hls xbin demuxer dos amplification in ffmpeg

published last yr. modified 3mo ago also EUVD-2023-58827 , JLSEC-2025-148

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 40%
public exploits
0
none known

Summary

A flaw was found in FFmpeg. This vulnerability allows unexpected additional CPU load and storage consumption, potentially leading to degraded performance or denial of service via the demuxing of arbitrary data as XBIN-formatted data without proper format validation.

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-2023-6604

  • ffmpeg SLE Workstation Extension 15 SP7, SLE Module for Package Hub 15 SP7, SLE Module for Desktop Applications 15 SP7 +10 more 3.4.2-150200.11.88.1

suse advisories SUSE-SU-2026:5220-1

  • ffmpeg-9 openSUSE Tumbleweed 9.0.2-5.1
  • ffmpeg-7 openSUSE Leap 16.0 7.1.5-160000.1.1

opensuse advisories openSUSE-SU-2026:12417-1openSUSE-SU-2026:21877-1

  • 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-2023-6604

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

Is CVE-2023-6604 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

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-2023-6604 updated cvss 5.3

ffmpeg: HLS XBIN Demuxer DoS Amplification in 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
partial
Assessed
last yr.

Exploit prediction

0.47% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-14).

Exploits and checks

  • bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2334337 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:N/I:N/A:L
CISA ADP 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
OSV 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

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
  • CWE-94 Improper Control of Generation of Code

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.

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