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NVD / CVE Program· CNA fedora

CVE-2025-10256: Ffmpeg: null pointer dereference in firequalizer filter (libavfilter/af_firequalizer.c)

Noroxi assessment

Priority: Monitor (action score 22/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.34% (FIRST EPSS).
  • Someone with local access to the system can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • According to CISA the attack is automatable: targets can be found by mass scanning.
  • Fixed version: github.com/FFmpeg/FFmpeg/ ffmpeg 8.0.

Low priority for now. Upgrade to github.com/FFmpeg/FFmpeg/ ffmpeg 8.0 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Feb 18, 2026
Updated
Jun 17, 2026
EPSS
0.3% · 28th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
5.5
CNA · fedora
5.3
0.2 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2025-10256

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
ffmpegffmpeg

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • ffmpeg ffmpeg3.2 and later · before 8.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (fedora). Independent of NVD's CPE analysis and usually ahead of it.

  • github.com/FFmpeg/FFmpeg/ ffmpeg

    • 3.2 and later · before 8.0affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:11ffmpegbefore 7:4.3.9-0+deb11u27:4.3.9-0+deb11u2
Debian:12ffmpegfrom 0—
Debian:13ffmpegbefore 7:7.1.2-0+deb13u17:7.1.2-0+deb13u1
Debian:14ffmpegbefore 7:7.1.2-17:7.1.2-1
openSUSE:Leap 16.0ffmpeg-7before 7.1.4-160000.1.17.1.4-160000.1.1
openSUSE:Tumbleweedffmpeg-4before 4.4.7-2.14.4.7-2.1
openSUSE:Tumbleweedffmpeg-7before 7.1.4-2.17.1.4-2.1
openSUSE:Tumbleweedffmpeg-8before 8.1.1-3.18.1.1-3.1
openSUSE:Tumbleweedffmpeg-9before 9.0.1-1.19.0.1-1.1
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSffmpeg-4before 4.4.7-150400.3.67.14.4.7-150400.3.67.1
SUSE:Linux Enterprise Module for Desktop Applications 15 SP7ffmpegbefore 3.4.2-150200.11.70.13.4.2-150200.11.70.1
SUSE:Linux Enterprise Module for Package Hub 15 SP7ffmpeg-4before 4.4.7-150600.13.47.14.4.7-150600.13.47.1

Same product

ffmpeg: all records

Other highest-scoring records for the same primary product.

  • CVE-2009-4637FFmpeg 0.5 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unknown vectors that trigger
    45Plan
  • CVE-2016-10190Heap-based buffer overflow in libavformat/http.c in FFmpeg before 2.8.10, 3.0.x before 3.0.5, 3.1.x before 3.1.6, and 3.2.x before 3.2.2 all
    42Plan
  • CVE-2009-4634Multiple integer underflows in FFmpeg 0.5 allow remote attackers to cause a denial of service and possibly execute arbitrary code via a craf
    42Plan

Published before and after this one in the same product

  • ← EarlierCVE-2025-59734Oct 6, 2025 · Heap-buffer-overflow write in FFmpeg SANM process_ftch
    34Monitor
  • ← EarlierCVE-2025-63757Dec 18, 2025 · Integer overflow vulnerability in the yuv2ya16_X_c_template function in libswscale/output.c in FFmpeg 8.0.
    30Monitor
  • Later →CVE-2025-12343Feb 18, 2026 · Ffmpeg: double-free vulnerability in ffmpeg tensorflow dnn backend
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
github.com/FFmpeg/FFmpeg/ ffmpeg8.0Vendor (CNA)
debian:ffmpeg7:7.1.2-0+deb13u1 · Debian:13Package registry (OSV)
opensuse:ffmpeg-44.4.7-2.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:ffmpeg-77.1.4-2.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:ffmpeg-88.1.1-3.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:ffmpeg-99.0.1-1.1 · openSUSE:TumbleweedPackage registry (OSV)
suse:ffmpeg3.4.2-150200.11.70.1 · SUSE:Linux Enterprise Module for Desktop Applications 15 SP7Package registry (OSV)
suse:ffmpeg-44.4.7-150400.3.67.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2023-6603414 days apartFfmpeg: null pointer dereference in ffmpeg hls parsing
    30Monitor
  • CVE-2025-22921365 days apartFFmpeg git-master,N-113007-g8d24a28d06 was discovered to contain a segmentation violation via the component /libavcodec/jpeg2000dec.c.
    26Monitor
  • CVE-2024-55069292 days apartffmpeg 7.1 is vulnerable to Null Pointer Dereference in function iamf_read_header in /libavformat/iamfdec.c.
    21Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-476 · NULL Pointer Dereference

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (3 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records