CVE-2026-75143
Fixed in a distro release EPSS <1%CVSS 9.8
FFmpeg before commit 1c10bcc contains a heap buffer overflow in the RIST protocol reader (libavformat/librist.c). librist_read() ignored its size argument and copied the full received payload length into the caller-provided destination buffer, overflowing it when the payload exceeds the destination size. This is reachable via the async:rist:// URL scheme, where the async wrapper supplies a smaller buffer than the received payload. A remote RIST sender can trigger the overflow by sending a packet whose payload exceeds the caller buffer size.
Products: FFMPEG
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Chainguard | torchaudio-ffmpeg-tarballs | 1-r2 |
| Chainguard | torchaudio-ffmpeg-tarballs-4.4.4 | 1-r2 |
| Chainguard | torchaudio-ffmpeg-tarballs-5.0.3 | 1-r2 |
| Chainguard | torchaudio-ffmpeg-tarballs-6.0 | 1-r2 |
| Debian 12 | ffmpeg | no fix |
| Debian 13 | ffmpeg | no fix |
| Debian 14 | ffmpeg | 7:9.0.2-1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | ffmpeg-4 | 4.4.8-150400.3.75.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | ffmpeg-4 | 4.4.8-150400.3.75.1 |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | ffmpeg-4 | 4.4.8-150600.13.55.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | ffmpeg-4 | 4.4.8-150400.3.75.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | ffmpeg-4 | 4.4.8-150400.3.75.1 |
| SUSE Linux Enterprise Workstation Extension 15 SP7 | ffmpeg-4 | 4.4.8-150600.13.55.1 |
| Ubuntu 26.10 | ffmpeg | no fix |
| Ubuntu Pro 14.04 LTS | libav | no fix |
| Ubuntu Pro 16.04 LTS | ffmpeg | 7:2.8.17-0ubuntu0.1+esm17 |
| Ubuntu Pro 18.04 LTS | ffmpeg | 7:3.4.11-0ubuntu0.1+esm15 |
| Ubuntu Pro 20.04 LTS | ffmpeg | 7:4.2.7-0ubuntu0.1+esm16 |
| Ubuntu Pro 22.04 LTS | ffmpeg | 7:4.4.2-0ubuntu0.22.04.1+esm15 |
| Ubuntu Pro 24.04 LTS | ffmpeg | 7:6.1.1-3ubuntu5+esm13 |
| Ubuntu Pro 26.04 LTS | ffmpeg | 7:8.0.1-3ubuntu2+esm4 |
| openSUSE Leap 16.0 | ffmpeg-7 | 7.1.5-160000.1.1 |
| openSUSE Tumbleweed | ffmpeg-4 | 4.4.8-5.1 |
| openSUSE Tumbleweed | ffmpeg-7 | 7.1.5-2.1 |
| openSUSE Tumbleweed | ffmpeg-8 | 8.1.2-3.1 |
| openSUSE Tumbleweed | ffmpeg-9 | 9.0.1-3.1 |