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CVE-2025-10256

Ffmpeg: null pointer dereference in firequalizer filter (libavfilter/af_firequalizer.c)

Published: 2/18/2026 Last updated: 2/25/2026 Reserved: 9/11/2025

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.

CNA assigner: fedora (92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5) Requested by: n/a

Metrics

Version Score Severity Vector String
3.1 5.3 Medium CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Opam packages affected (3)

conf-ffmpeg ffmpeg opus

Products affected (1)

Product Vendor Version
< 13ad45ad14df992a6754a130a19abc8c142d54e2

References (8)

Credits (2)