CVE-2023-6601

MEDIUM

FFmpeg HLS Demuxer - Unsafe Extension Check Bypass

Title source: manual

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.

References (2)

Core 2

Core References

Mailing List

https://lists.debian.org/debian-lts-announce/2025/07/msg00004.html

Exploit, Issue Tracking issue-tracking x_refsource_redhat

https://bugzilla.redhat.com/show_bug.cgi?id=2253172

Scores

CVSS v3 4.7

EPSS 0.0003

EPSS Percentile 8.6%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-99 CWE-94

Status published

Products (1)

ffmpeg/ffmpeg 2.0 - 6.0

Published Jan 06, 2025

Tracked Since Feb 18, 2026