What is the CVSS score of CVE-2025-10256?

CVE-2025-10256 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L. EPSS exploitation probability: 0.0%.

Which versions of Ffmpeg are affected by CVE-2025-10256?

CVE-2025-10256 presents moderate security risk, a null pointer dereference vulnerability rated CVSS 5.3. Exploitation could compromise the security of affected deployments.. A patch is available.

How to fix or mitigate CVE-2025-10256?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Vendor patch is available.

Ffmpeg CVE-2025-10256

MEDIUM

NULL Pointer Dereference (CWE-476)

2026-02-18 patrick@puiterwijk.org

Denial Of Service Null Pointer Dereference Red Hat Ffmpeg Suse

5.3

CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

Patch released

Feb 26, 2026 - 22:33 nvd

Patch available

CVE Published

Feb 18, 2026 - 21:16 nvd

MEDIUM 5.3

DescriptionNVD

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.

AnalysisAI

Technical ContextAI

Classified as CWE-476 (NULL Pointer Dereference). Affects Ffmpeg. 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.