CVE-2025-10256 MEDIUM

CVE-2025-10256: Ffmpeg: null pointer dereference in firequalizer filter (libavfilter/af_firequalizer.c)

Weakness CWE-476
Published February 18, 2026
Last update February 25, 2026
View on NVD All CVEs

CVSS base score

5.3/10
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:L

What the vulnerability does

01Description

A NULL pointer dereference vulnerability exists in FFmpeg’s Firequalizer filter (libavfilter/af_firequalizer.c) due to a missing check on the return value of av_malloc_array() in the config_input() function. An attacker could exploit this by tricking a victim into processing a crafted media file with the Firequalizer filter enabled, causing the application to dereference a NULL pointer and crash, leading to denial of service.

Key dates

02Disclosure timeline

February 18, 2026 CVE published
February 25, 2026 Record updated