CVE-2026-18393: Out-of-bounds Write in Red Hat Red Hat Enterprise Linux AI (RHEL AI) 3
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.
CVE-2026-18393: Out-of-bounds Write in Red Hat Red Hat Enterprise Linux AI (RHEL AI) 3
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.
CVSS v3.1
Score 5.4medium
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2026-07-30T14:46:29.814Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-18393","vendor":"Red Hat"}]
Threat ID: 6a916f87acd9273b49cf91b3
Added to database: 08/28/2026, 11:22:47 UTC
Last updated: 08/28/2026, 11:22:47 UTC
Views: 1
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