CVE-2025-10256

Publication date 16 September 2025

Last updated 27 February 2026

Ubuntu priority

Cvss 3 Severity Score

Description

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.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
ffmpeg	25.10 questing	Vulnerable
	25.04 plucky	Ignored end of life, was needed
	24.04 LTS noble	Fixed 7:6.1.1-3ubuntu5+esm6
	22.04 LTS jammy	Fixed 7:4.4.2-0ubuntu0.22.04.1+esm10
	20.04 LTS focal	Fixed 7:4.2.7-0ubuntu0.1+esm11
	18.04 LTS bionic	Fixed 7:3.4.11-0ubuntu0.1+esm11
	16.04 LTS xenial	Vulnerable
libav	25.10 questing	Not in release
	25.04 plucky	Not in release
	24.04 LTS noble	Not in release
	22.04 LTS jammy	Not in release
	14.04 LTS trusty	Needs evaluation

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Severity score breakdown

Parameter	Value
Base score	5.3 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	Low
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVE-2025-10256

Cvss 3 Severity Score

Description

Status

Get expanded security coverage with Ubuntu Pro

Severity score breakdown

References

Related Ubuntu Security Notices (USN)

Other references