CVE-2023-6603 — NULL Pointer Dereference in Ffmpeg

CWE-476 — NULL Pointer DereferenceCWE-99 — Resource Injection7 documents5 sources
Severity
7.5HIGHNVD
EPSS
0.2%
top 61.33%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
FfmpegDebian Ffmpeg
Timeline
PublishedDec 31
Latest updateNov 26

Description

A flaw was found in FFmpeg's HLS playlist parsing. This vulnerability allows a denial of service via a maliciously crafted HLS playlist that triggers a null pointer dereference during initialization.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages4 packages

▶debiandebian/ffmpeg< ffmpeg 7:5.0.1-2 (bookworm)
▶Debianffmpeg/ffmpeg< 7:4.3.9-0+deb11u2+3
▶Ubuntuffmpeg/ffmpeg< 7:3.4.11-0ubuntu0.1+esm11+3
▶NVDffmpeg/ffmpeg2.0 — 6.0

🔴Vulnerability Details

3
OSV
ffmpeg vulnerabilities↗2025-10-21
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GHSA
GHSA-gxvx-w63c-jprw: A flaw was found in FFmpeg's HLS playlist parsing↗2024-12-31
▶
OSV
CVE-2023-6603: A flaw was found in FFmpeg's HLS playlist parsing↗2024-12-31
▶

📋Vendor Advisories

3
Ubuntu
FFmpeg vulnerability↗2025-11-26
▶
Ubuntu
FFmpeg vulnerabilities↗2025-10-21
▶
Debian
CVE-2023-6603: ffmpeg - A flaw was found in FFmpeg's HLS playlist parsing. This vulnerability allows a d...↗2023
▶