What is CVE-2023-6601?

CVE-2023-6601 is a medium-severity vulnerability in Ffmpeg, classified under Resource Injection. CVSS score: 4.7/10. Published 2025-01-06.

How severe is CVE-2023-6601?

Medium severity. CVSS v3 base score is 4.7 out of 10.

Is CVE-2023-6601 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Ffmpeg

CVE-2023-6601

A flaw was found in FFmpeg's HLS demuxer. This vulnerability allows bypassing unsafe file extension checks and triggering arbitrary demuxers via base64-encoded data URIs appended with specific file extensions.

Published 2025-01-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (34.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000

Affected products

Ffmpeg

Weakness classification (CWE)

Public proof-of-concept exploits

w4zu/Debian_

References

bugzilla.redhat.com/show_bug.cgi (issue-tracking, Exploit, Issue Tracking)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2023-6601?: CVE-2023-6601 is a medium-severity vulnerability in Ffmpeg, classified under Resource Injection. CVSS score: 4.7/10. Published 2025-01-06.
How severe is CVE-2023-6601?: Medium severity. CVSS v3 base score is 4.7 out of 10.
Is CVE-2023-6601 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.