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OpenAdvisories
High · 8.8 Public exploit CVE-2026-8461 EUVD-2026-37878GHSA-qff7-4q6c-m8h6

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

Published Jun 18, 2026 · Updated Jul 23, 2026 · Assigned by JFROG

Description

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.

Affected products

VendorProductAffectedFixed
FFmpeg FFmpeg < 8.1.2 8.1.2

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 ffmpeg 7:8.1.2-1 —
Debian 13 ffmpeg 7:7.1.5-0+deb13u1 —
Debian 12 ffmpeg No fix yet —
ReleasePackageFixed inAdvisory
Ubuntu 26.10 ffmpeg No fix yet —
Ubuntu 25.10 ffmpeg No fix yet —
Show 7 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro 26.04 LTS ffmpeg No fix yet —
Ubuntu Pro 24.04 LTS ffmpeg No fix yet —
Ubuntu Pro 22.04 LTS ffmpeg 7:4.4.2-0ubuntu0.22.04.1+esm16 USN-8750-1
Ubuntu Pro 20.04 LTS ffmpeg 7:4.2.7-0ubuntu0.1+esm17 USN-8750-1
Ubuntu Pro 18.04 LTS ffmpeg No fix yet —
Ubuntu Pro 16.04 LTS ffmpeg No fix yet —
Ubuntu Pro 14.04 LTS libav No fix yet —
ReleasePackageFixed inAdvisory
Red Hat Enterprise Linux Ai 3 ffmpeg +18 6.1.6-1.el9ai RHSA-2026:74089, RHSA-2026:43711
ReleasePackageFixed inAdvisory
SLES 15 SP7 ffmpeg 3.4.2-150200.11.76.1 SUSE-SU-2026:3632-1
SLES 15 SP7 ffmpeg-4 4.4.8-150600.13.52.1 SUSE-SU-2026:3542-1
SLES 15 SP6 ffmpeg 3.4.2-150200.11.76.1 SUSE-SU-2026:3632-1
SLES 15 SP5 ffmpeg 3.4.2-150200.11.76.1 SUSE-SU-2026:3632-1
SLES 15 SP4 ffmpeg 3.4.2-150200.11.76.1 SUSE-SU-2026:3632-1
SLES 15 SP4 ffmpeg-4 4.4.8-150400.3.72.1 SUSE-SU-2026:3529-1
Show 5 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 15 SP6 ffmpeg 3.4.2-150200.11.76.1 SUSE-SU-2026:3632-1
SLES for SAP 15 SP5 ffmpeg 3.4.2-150200.11.76.1 SUSE-SU-2026:3632-1
SLES for SAP 15 SP4 ffmpeg 3.4.2-150200.11.76.1 SUSE-SU-2026:3632-1
SLES for SAP 15 SP4 ffmpeg-4 4.4.8-150400.3.72.1 SUSE-SU-2026:3529-1
SLE HPC 15 SP5 ffmpeg 3.4.2-150200.11.76.1 SUSE-SU-2026:3632-1
SLE HPC 15 SP4 ffmpeg 3.4.2-150200.11.76.1 SUSE-SU-2026:3632-1
SLE HPC 15 SP4 ffmpeg-4 4.4.8-150400.3.72.1 SUSE-SU-2026:3529-1
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed ffmpeg-4 4.4.8-2.1 openSUSE-SU-2026:11360-1
openSUSE Tumbleweed ffmpeg-7 7.1.5-1.1 openSUSE-SU-2026:11384-1
openSUSE Tumbleweed ffmpeg-8 8.1.2-2.1 openSUSE-SU-2026:11347-1
openSUSE Tumbleweed ffmpeg-9 9.0.1-1.1 openSUSE-SU-2026:11515-1
openSUSE Leap 16.0 ffmpeg-7 7.1.5-160000.1.1 openSUSE-SU-2026:21877-1
ReleasePackageFixed inAdvisory
Alpine v3.24 ffmpeg 8.1.2-r0 —

Wolfi

ReleasePackageFixed inAdvisory
Wolfi rolling ffmpeg-7 No fix yet —
Wolfi rolling ffmpeg-7.1 7.1.5-r0 —
Wolfi rolling ffmpeg-7.1-libswscale8 +1 7.1.5-r2 —
Wolfi rolling ffmpeg-8.0 8.0.3-r0 —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 5 repositories

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Advisories 12

References