CVE-2025-10256
Ffmpeg: null pointer dereference in firequalizer filter (libavfilter/af_firequalizer.c)
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.
INFO
Published Date :
Feb. 18, 2026, 9:16 p.m.
Last Modified :
Feb. 18, 2026, 9:16 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2025-10256
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5 | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Apply the patch for FFmpeg's Firequalizer filter.
- Ensure av_malloc_array() return value is checked.
- Update FFmpeg to a patched version.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-10256.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-10256 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-10256
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-10256 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-10256 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
Feb. 18, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Added CWE CWE-476 Added Reference https://access.redhat.com/security/cve/CVE-2025-10256 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2394495 Added Reference https://github.com/FFmpeg/FFmpeg/commit/a25462482c02c004d685a8fcf2fa63955aaa0931 Added Reference https://github.com/FFmpeg/FFmpeg/commit/d3be186ed1bcdcf2c093d6b13a0e66dc5132be2a