CVE-2025-10256Hinoki check available

Process crash via unchecked Firequalizer buffer allocation

Published Feb 18, 2026 · Updated Feb 18, 2026

NULL pointer dereference in FFmpeg 3.2 and later before 8.0 allows context-dependent attackers to crash Firequalizer-enabled processes. The config_input function assigns av_malloc_array's unchecked NULL result to s->dump_buf, which later code dereferences instead of returning an allocation error. Reachability requires processing crafted media with the Firequalizer filter enabled and an allocation failure; the bounded consequence is termination of the invoking process.

CVSS severity5.3
Medium
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

NULL pointer dereference in FFmpeg 3.2 and later before 8.0 allows context-dependent attackers to crash Firequalizer-enabled processes. The config_input function assigns av_malloc_array's unchecked NULL result to s->dump_buf, which later code dereferences instead of returning an allocation error. Reachability requires processing crafted media with the Firequalizer filter enabled and an allocation failure; the bounded consequence is termination of the invoking process.

The record

CVE
CVE-2025-10256
Published
Feb 18, 2026
Updated
Feb 18, 2026
Vendor
FFmpeg
Product
FFmpeg
Classifications
CWE-476, T1204.002, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.2 <8.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

FFmpeg · FFmpegversion=3.2 <8.0

Published CVSS scores

5.3Fedora ProjectCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1204.002Malicious File
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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