CVE-2026-75141
Fixed in a distro release EPSS <1%CVSS 7.8
FFmpeg before commit acf5d7c contains a heap buffer overflow in the hvcC box writer. When writing an HEVC configuration record with more NAL units of a single type than the count field can represent, the NAL unit count overflows, causing a heap buffer overflow. A crafted HEVC input file triggers the overflow during muxing.
Products: FFMPEG
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | ffmpeg | no fix |
| Debian 13 | ffmpeg | no fix |
| Debian 14 | ffmpeg | 7:9.0.2-1 |
| 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 | 4.4.8-6.1 |
| 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 |