CVE-2023-6601

Name: CVE-2023-6601
Creator: NVD / NIST
Published: 2025-01-06T17:15:14.217+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.7/10EPSS 0.39%

Last modified Jun 17, 2026

CVE-2023-6601 is a medium-severity vulnerability rated 4.7/10 on the CVSS scale. 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.. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

4.7/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N

EPSS Probability

0.39%

30.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Ffmpeg	Ffmpeg	>= 2.0, <= 6.0

References

https://bugzilla.redhat.com/show_bug.cgi?id=2253172Exploit, Issue Tracking
https://lists.debian.org/debian-lts-announce/2025/07/msg00004.html

Timeline

Published: Jan 6, 2025
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-6601?

How severe is CVE-2023-6601?

CVE-2023-6601 has a CVSS score of 4.7/10 (MEDIUM severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2023-6601?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-6601?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST