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CVE-2026-8461· NVD / CVE Program· CNA JFROG

Heap out-of-bounds write via odd slice_height in FFmpeg MagicYUV decoder

Noroxi assessment

Priority: Monitor (action score 35/100)

  • Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 1% (FIRST EPSS); higher than 62.8% of all records.
  • Anyone who can reach it over the internet 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.
  • Fixed version: ffmpeg (Debian:13) 7:7.1.5-0+deb13u1; ffmpeg (Debian:14) 7:8.1.2-1; ffmpeg-4 (openSUSE:Tumbleweed) 4.4.8-2.1.

Low priority for now. Upgrade to ffmpeg (Debian:13) 7:7.1.5-0+deb13u1; ffmpeg (Debian:14) 7:8.1.2-1; ffmpeg-4 (openSUSE:Tumbleweed) 4.4.8-2.1 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

An out-of-bounds write vulnerability in FFmpeg's libavcodec library, specifically in the MagicYUV decoder, allows denial-of-service and, in some cases, can be exploited for remote code execution. This vulnerability is associated with the file libavcodec/magicyuv.C. This issue affects FFmpeg before version 8.1.2.

HighCVSS 8.8 · v3.1—Proof of concept Fix available
Published
Jun 18, 2026
Updated
Jul 23, 2026
EPSS
1.0% · 63th percentile

Report tools

JSON

Action score

35

Monitor

Low priority for now.

CVSS
35 / 40 · 8.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.0%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · JFROG
8.8
NVD has not scored this yet; the score shown is the CNA’s.

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
  • Proof of concept exists, no weaponized module
  • A fix has been released

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

Follow CVE-2026-8461

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
enterprise linux ai3.5
ai inference server3
enterprise linux ai3
openshift ai

Versions reported by the vendor

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

  • FFmpeg FFmpeg

    • before 8.1.2affected

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12ffmpegall versions—
Debian:13ffmpegbefore 7:7.1.5-0+deb13u17:7.1.5-0+deb13u1
Debian:14ffmpegbefore 7:8.1.2-17:8.1.2-1
openSUSE:Tumbleweedffmpeg-4before 4.4.8-2.14.4.8-2.1
openSUSE:Tumbleweedffmpeg-7before 7.1.5-1.17.1.5-1.1
openSUSE:Tumbleweedffmpeg-8before 8.1.2-2.18.1.2-2.1
openSUSE:Tumbleweedffmpeg-9before 9.0.1-1.19.0.1-1.1
Red Hat:enterprise_linux_ai:3.0::el9ffmpegbefore 0:6.1.6-9.el9ai0:6.1.6-9.el9ai
Red Hat:enterprise_linux_ai:3.0::el9ffmpeg-debuginfobefore 0:6.1.6-9.el9ai0:6.1.6-9.el9ai
Red Hat:enterprise_linux_ai:3.0::el9ffmpeg-debugsourcebefore 0:6.1.6-9.el9ai0:6.1.6-9.el9ai
Red Hat:enterprise_linux_ai:3.0::el9ffmpeg-free-rhaibefore 0:6.1.6-9.el9ai0:6.1.6-9.el9ai
Red Hat:enterprise_linux_ai:3.0::el9ffmpeg-free-rhai-debuginfobefore 0:6.1.6-9.el9ai0:6.1.6-9.el9ai
Red Hat:enterprise_linux_ai:3.0::el9ffmpeg-free-rhai-develbefore 0:6.1.6-9.el9ai0:6.1.6-9.el9ai
Red Hat:enterprise_linux_ai:3.0::el9libavcodec-free-rhaibefore 0:6.1.6-9.el9ai0:6.1.6-9.el9ai
Red Hat:enterprise_linux_ai:3.0::el9libavcodec-free-rhai-debuginfobefore 0:6.1.6-9.el9ai0:6.1.6-9.el9ai
Red Hat:enterprise_linux_ai:3.0::el9libavcodec-free-rhai-develbefore 0:6.1.6-9.el9ai0:6.1.6-9.el9ai
Red Hat:enterprise_linux_ai:3.0::el9libavdevice-free-rhaibefore 0:6.1.6-9.el9ai0:6.1.6-9.el9ai
Red Hat:enterprise_linux_ai:3.0::el9libavdevice-free-rhai-debuginfobefore 0:6.1.6-9.el9ai0:6.1.6-9.el9ai
Red Hat:enterprise_linux_ai:3.0::el9libavdevice-free-rhai-develbefore 0:6.1.6-9.el9ai0:6.1.6-9.el9ai
Red Hat:enterprise_linux_ai:3.0::el9libavfilter-free-rhaibefore 0:6.1.6-9.el9ai0:6.1.6-9.el9ai
Red Hat:enterprise_linux_ai:3.0::el9libavfilter-free-rhai-debuginfobefore 0:6.1.6-9.el9ai0:6.1.6-9.el9ai
Red Hat:enterprise_linux_ai:3.0::el9libavfilter-free-rhai-develbefore 0:6.1.6-9.el9ai0:6.1.6-9.el9ai
Red Hat:enterprise_linux_ai:3.0::el9libavformat-free-rhaibefore 0:6.1.6-9.el9ai0:6.1.6-9.el9ai
Red Hat:enterprise_linux_ai:3.0::el9libavformat-free-rhai-debuginfobefore 0:6.1.6-9.el9ai0:6.1.6-9.el9ai

+46

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
  • CVE-2009-4633vorbis_dec.c in FFmpeg 0.5 uses an assignment operator when a comparison operator was intended, which might allow remote attackers to cause
    42Plan
  • CVE-2016-10192Heap-based buffer overflow in ffserver.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 allows remo
    41Plan
  • CVE-2016-10191Heap-based buffer overflow in libavformat/rtmppkt.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
    41Plan

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
debian:ffmpeg7:7.1.5-0+deb13u1 · Debian:13Package registry (OSV)
opensuse:ffmpeg-44.4.8-2.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:ffmpeg-77.1.5-1.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:ffmpeg-88.1.2-2.1 · openSUSE:TumbleweedPackage registry (OSV)
opensuse:ffmpeg-99.0.1-1.1 · openSUSE:TumbleweedPackage registry (OSV)
red hat:ffmpeg0:6.1.6-1.el9ai · Red Hat:enterprise_linux_ai:3.5::el9Package registry (OSV)
red hat:ffmpeg-debuginfo0:6.1.6-1.el9ai · Red Hat:enterprise_linux_ai:3.5::el9Package registry (OSV)
red hat:ffmpeg-debugsource0:6.1.6-1.el9ai · Red Hat:enterprise_linux_ai:3.5::el9Package registry (OSV)
red hat:ffmpeg-free-rhai0:6.1.6-1.el9ai · Red Hat:enterprise_linux_ai:3.5::el9Package registry (OSV)
red hat:ffmpeg-free-rhai-debuginfo0:6.1.6-1.el9ai · Red Hat:enterprise_linux_ai:3.5::el9Package registry (OSV)
red hat:ffmpeg-free-rhai-devel0:6.1.6-1.el9ai · Red Hat:enterprise_linux_ai:3.5::el9Package registry (OSV)
red hat:libavcodec-free-rhai0:6.1.6-1.el9ai · Red Hat:enterprise_linux_ai:3.5::el9Package registry (OSV)
red hat:libavcodec-free-rhai-debuginfo0:6.1.6-1.el9ai · Red Hat:enterprise_linux_ai:3.5::el9Package registry (OSV)
red hat:libavcodec-free-rhai-devel0:6.1.6-1.el9ai · Red Hat:enterprise_linux_ai:3.5::el9Package registry (OSV)
red hat:libavdevice-free-rhai0:6.1.6-1.el9ai · Red Hat:enterprise_linux_ai:3.5::el9Package registry (OSV)
red hat:libavdevice-free-rhai-debuginfo0:6.1.6-1.el9ai · Red Hat:enterprise_linux_ai:3.5::el9Package registry (OSV)
red hat:libavdevice-free-rhai-devel0:6.1.6-1.el9ai · Red Hat:enterprise_linux_ai:3.5::el9Package registry (OSV)
suse:ffmpeg3.4.2-150200.11.76.1 · SUSE:Linux Enterprise Module for Desktop Applications 15 SP7Package registry (OSV)
suse:ffmpeg-44.4.8-150400.3.72.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSPackage registry (OSV)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Proof-of-concept repository on GitHub ×5

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:82026-06-23
Proof-of-concept repository on GitHubstars:162026-06-24
Proof-of-concept repository on GitHubstars:12026-06-24
Proof-of-concept repository on GitHubstars:52026-06-26
Proof-of-concept repository on GitHubstars:02026-09-24

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.

  1. Published
  2. First PoC+5 d
  3. TodayOct 14, 2026+118 d
EPSS, last 120 days-1% in 7 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

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

No commit or PR link among the references.

Credits

All researchers

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

No credits in the CNA record.

Variant candidates

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

  • CVE-2026-580499 days apartFFmpeg - Out-of-Bounds Write in RASC Decoder decode_dlta()
    35Monitor
  • CVE-2026-6483534 days apartFFmpeg 4.4 - 8.1.2 Out-of-Bounds Memory Access in ADX Audio Decoder
    34Monitor
  • CVE-2026-6570335 days apartFFmpeg 2.7 - 8.1.2 Out-of-Bounds Write in TDSC Video Decoder
    34Monitor
  • CVE-2026-7063249 days apartFFmpeg 4.4 < 9.0 Heap Out-of-Bounds Write in CFHD Decoder via AVI Demuxing
    34Monitor
  • CVE-2025-59732255 days apartHeap-buffer-overflow write in FFmpeg EXR dwa_uncompress
    34Monitor
  • CVE-2025-59733255 days apartHeap-buffer-overflow write in FFmpeg EXR dwa_uncompress
    34Monitor

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

  • Anyone who can reach it over the internet 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
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-787 · Out-of-bounds Write

CVSS vector

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

nvd-secondary

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 (4 more)

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

All records