CVE-2026-18393
Fixed in a distro release EPSS <1%CVSS 5.4
A flaw was found in FFmpeg. The tdsc_load_cursor() function writes beyond the bounds of a heap-allocated buffer when processing crafted TDSC cursor data. A remote attacker could exploit this by supplying a specially crafted video file, potentially leading to a denial of service or arbitrary code execution.
Products: Red Hat Enterprise Linux AI (RHEL AI) 3, Red Hat OpenShift AI (RHOAI)
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | ffmpeg | no fix |
| Debian 13 | ffmpeg | no fix |
| Debian 14 | ffmpeg | 7:8.1.1-1 |
| Ubuntu 26.10 | ffmpeg | no fix |
| Ubuntu Pro 14.04 LTS | libav | no fix |
| Ubuntu Pro 16.04 LTS | ffmpeg | no fix |
| Ubuntu Pro 18.04 LTS | ffmpeg | no fix |
| Ubuntu Pro 20.04 LTS | ffmpeg | no fix |
| Ubuntu Pro 22.04 LTS | ffmpeg | no fix |
| Ubuntu Pro 24.04 LTS | ffmpeg | no fix |
| Ubuntu Pro 26.04 LTS | ffmpeg | no fix |
| openSUSE Tumbleweed | ffmpeg-4 | 4.4.8-6.1 |
| openSUSE Tumbleweed | ffmpeg-7 | 7.1.5-4.1 |
| openSUSE Tumbleweed | ffmpeg-8 | 8.1.2-5.1 |
| openSUSE Tumbleweed | ffmpeg-9 | 9.0.1-6.1 |