CVE-2026-18393
Ffmpeg: ffmpeg: heap buffer overflow in tdsc_load_cursor() via cur_fmt_mono cursor
- State
- Published
- Severity
- 5.4 Medium
- Published
- Aug 28, 2026
- Updated
- Aug 28, 2026
- Reserved
- Jul 30, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.4 Medium | CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H | redhat |
Weaknesses
- CWE-787 Out-of-bounds Write
Affected Products
| Product | Versions |
|---|---|
Red Hat Enterprise Linux AI (RHEL AI) 3Red Hat | |
Red Hat OpenShift AI (RHOAI)Red Hat |
References
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