CVE-2025-10256
mediumpriority · track · 22EPSS 0.003 · 28 %ileDEEURUUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (13)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2025-2026ffmpeg: Schwachstelle ermöglicht Denial of ServiceDeutsch2025-09-10csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in ffmpeg ausnutzen, um einen Denial of Service Angriff durchzuführen.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (14)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/CVE-2025-10256cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2394495cnnvd
- https://github.com/FFmpeg/FFmpeg/commit/a25462482c02c004d685a8fcf2fa63955aaa0931cnnvd
- https://github.com/FFmpeg/FFmpeg/commit/d3be186ed1bcdcf2c093d6b13a0e66dc5132be2acnnvd
- https://vigilance.fr/vulnerability/FFmpeg-NULL-pointer-dereference-via-Firequalizer-Filter-48538cnnvd
- https://www.ffmpeg.org/download.htmlPatchcnnvd
- https://access.redhat.com/security/cve/CVE-2025-10256enisa_euvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2394495enisa_euvd
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