CVE-2023-6603 HIGH

CVE-2023-6603: Ffmpeg: null pointer dereference in ffmpeg hls parsing

Weakness CWE-476

Published December 31, 2024

Last update August 21, 2025

View on NVD All CVEs

CVSS base score

7.5/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction None

Confidentiality None

Integrity None

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

December 31, 2024 CVE published

August 21, 2025 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2023-6603 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/476.html