CVE-2025-10256

low-risk
Published 2026-02-18

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.

Do I need to act?

-
0.01% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Ffmpeg

References (4)

Third Party Advisory https://access.redhat.com/security/cve/CVE-2025-10256
Third Party Advisory https://bugzilla.redhat.com/show_bug.cgi?id=2394495
Patch https://github.com/FFmpeg/FFmpeg/commit/a25462482c02c004d685a8fcf2fa63955aaa0931
Patch https://github.com/FFmpeg/FFmpeg/commit/d3be186ed1bcdcf2c093d6b13a0e66dc5132be2a
26
/ 100
low-risk
Severity 21/34 · High
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal