Description
FFmpeg before commit 1cdeb3c contains a heap buffer overflow vulnerability in the VC-2/Dirac RTP packetizer (libavformat/rtpenc_vc2hq.c) that allows attackers to trigger memory corruption by supplying a crafted Dirac data unit. The packetizer copies an input-derived data unit or fragment size into a fixed-size buffer without an upper bound check, causing a heap buffer overflow when the crafted input is packetized for RTP output.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| FFmpeg | FFmpeg | — | — |
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.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | ffmpeg | 7:9.0.2-1 | — |
| Debian 13 | ffmpeg | No fix yet | — |
| Debian 12 | ffmpeg | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | ffmpeg | No fix yet | — |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 26.04 LTS | ffmpeg | 7:8.0.1-3ubuntu2+esm4 | USN-8716-2 |
| Ubuntu Pro 24.04 LTS | ffmpeg | 7:6.1.1-3ubuntu5+esm13 | USN-8716-1 |
| Ubuntu Pro 22.04 LTS | ffmpeg | 7:4.4.2-0ubuntu0.22.04.1+esm15 | USN-8716-1 |
| Ubuntu Pro 20.04 LTS | ffmpeg | 7:4.2.7-0ubuntu0.1+esm16 | USN-8716-1 |
| Ubuntu Pro 18.04 LTS | ffmpeg | 7:3.4.11-0ubuntu0.1+esm15 | USN-8716-1 |
| Ubuntu Pro 16.04 LTS | ffmpeg | 7:2.8.17-0ubuntu0.1+esm17 | USN-8716-1 |
| Ubuntu Pro 14.04 LTS | libav | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux Ai 3 | ffmpeg +18 | 6.1.6-10.el9ai | RHSA-2026:99037, RHSA-2026:99036, RHSA-2026:94488 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | ffmpeg | 3.4.2-150200.11.88.1 | SUSE-SU-2026:5220-1 |
| SLES 15 SP7 | ffmpeg-4 | 4.4.8-150600.13.55.1 | SUSE-SU-2026:4149-1 |
| SLES 15 SP6 | ffmpeg | 3.4.2-150200.11.88.1 | SUSE-SU-2026:5220-1 |
| SLES 15 SP5 | ffmpeg | 3.4.2-150200.11.88.1 | SUSE-SU-2026:5220-1 |
| SLES 15 SP4 | ffmpeg | 3.4.2-150200.11.88.1 | SUSE-SU-2026:5220-1 |
| SLES 15 SP4 | ffmpeg-4 | 4.4.8-150400.3.75.1 | SUSE-SU-2026:4150-1 |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP6 | ffmpeg | 3.4.2-150200.11.88.1 | SUSE-SU-2026:5220-1 |
| SLES for SAP 15 SP5 | ffmpeg | 3.4.2-150200.11.88.1 | SUSE-SU-2026:5220-1 |
| SLES for SAP 15 SP4 | ffmpeg | 3.4.2-150200.11.88.1 | SUSE-SU-2026:5220-1 |
| SLES for SAP 15 SP4 | ffmpeg-4 | 4.4.8-150400.3.75.1 | SUSE-SU-2026:4150-1 |
| SLE HPC 15 SP5 | ffmpeg | 3.4.2-150200.11.88.1 | SUSE-SU-2026:5220-1 |
| SLE HPC 15 SP4 | ffmpeg | 3.4.2-150200.11.88.1 | SUSE-SU-2026:5220-1 |
| SLE HPC 15 SP4 | ffmpeg-4 | 4.4.8-150400.3.75.1 | SUSE-SU-2026:4150-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | ffmpeg-4 | 4.4.8-5.1 | openSUSE-SU-2026:11716-1 |
| openSUSE Tumbleweed | ffmpeg-7 | 7.1.5-2.1 | openSUSE-SU-2026:11665-1 |
| openSUSE Tumbleweed | ffmpeg-8 | 8.1.2-3.1 | openSUSE-SU-2026:11682-1 |
| openSUSE Tumbleweed | ffmpeg-9 | 9.0.1-3.1 | openSUSE-SU-2026:11659-1 |
| openSUSE Leap 16.0 | ffmpeg-7 | 7.1.5-160000.1.1 | openSUSE-SU-2026:21877-1 |
Advisories 14
- RHSA-2026:99037 Red Hat Security Advisory: RHEL AI 3.0 RPM runtime CVE fix - ffmpeg Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:99036 Red Hat Security Advisory: RHEL AI 3.4 RPM runtime CVE fix - ffmpeg Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:94488 Red Hat Security Advisory: RHEL AI 3.5 RPM runtime CVE fix - ffmpeg Red Hat Security Advisories (RHSA) · Nov 13, 2026
- SUSE-SU-2026:5220-1 Security update for ffmpeg SUSE / openSUSE Security Updates · Nov 13, 2026
- WID-SEC-2026-2939 ffmpeg: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 12, 2026
- openSUSE-SU-2026:21877-1 Security update for ffmpeg-7 SUSE / openSUSE Security Updates · Sep 25, 2026
- SUSE-SU-2026:4149-1 Security update for ffmpeg-4 SUSE / openSUSE Security Updates · Sep 15, 2026
- SUSE-SU-2026:4150-1 Security update for ffmpeg-4 SUSE / openSUSE Security Updates · Sep 15, 2026
- USN-8716-2 ffmpeg vulnerabilities Ubuntu Security Notices (USN) · Sep 10, 2026
- openSUSE-SU-2026:11716-1 ffmpeg-4-4.4.8-5.1 on GA media SUSE / openSUSE Security Updates · Sep 9, 2026
- openSUSE-SU-2026:11682-1 ffmpeg-8-8.1.2-3.1 on GA media SUSE / openSUSE Security Updates · Sep 5, 2026
- USN-8716-1 Several security issues were fixed in FFmpeg. Ubuntu Security Notices (USN) · Sep 3, 2026
- openSUSE-SU-2026:11665-1 ffmpeg-7-7.1.5-2.1 on GA media SUSE / openSUSE Security Updates · Sep 3, 2026
- openSUSE-SU-2026:11659-1 ffmpeg-9-libavcodec-devel-9.0.1-3.1 on GA media SUSE / openSUSE Security Updates · Sep 2, 2026
References
- Pull Request issue-tracking
- Patch Commit patch
- https://www.vulncheck.com/advisories/ffmpeg-heap-buffer-overflow-in-vc-2-dirac-rtp-packetizer third-party-advisory