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CVE-2025-10256

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

Published: Feb 18, 2026Updated: Feb 26, 2026 Sources: CVE List NVD BDUCWE-476
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
0.3%
Top 78.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-476

Affected Products

Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
РОСА ХРОМАО «НТЦ ИТ РОСА»
On-prem
Operating Systems / linux-distro
FFmpegFFmpeg teamOSS Libraries
ffmpegffmpeg
Library
OSS Libraries / generic-library
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
ао «нтц ит роса»commercialRUOperating Systems
ffmpeg teamoss-projectOSS Librariesaka ffmpeg
ffmpegoss-projectUSOSS Librariesaka libavcodec

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

2 techniques
Impact
Initial Access
View detailed technique mapping

References

https://access.redhat.com/security/cve/CVE-2025-10256
access.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2394495
bugzilla.redhat.com
https://github.com/FFmpeg/FFmpeg/commit/a25462482c02c004d685a8fcf2fa63955aaa0931
github.com
and 7 more references View all →

Timeline

Published
Feb 18, 2026
Last Updated
Feb 26, 2026

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