CVE-2026-18393

Published: Ago 28, 2026 Last Modified: Ago 28, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,4
Source: [email protected]
Attack Vector: adjacent_network
Attack Complexity: high
Privileges Required: none
User Interaction: required
Scope: unchanged
Confidentiality: none
Integrity: low
Availability: high

Description

AI Translation Available

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.

787

Out-of-bounds Write

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Availability Other
Potential Impacts:
Modify Memory Execute Unauthorized Code Or Commands Dos: Crash, Exit, Or Restart Unexpected State
Applicable Platforms
Languages: Memory-Unsafe, C, C++, Assembly
Technologies: ICS/OT
Likelihood of Exploit: High
View CWE Details
https://access.redhat.com/security/cve/CVE-2026-18393
https://access.redhat.com/security/cve/CVE-2026-18393
https://bugzilla.redhat.com/show_bug.cgi?id=2520309
https://bugzilla.redhat.com/show_bug.cgi?id=2520309
https://github.com/FFmpeg/FFmpeg/commit/242ff799c75f20bade9…
https://github.com/FFmpeg/FFmpeg/commit/242ff799c75f20bade946314c8d741d0887ee11c
https://patchwork.ffmpeg.org/project/ffmpeg/patch/177767065…
https://patchwork.ffmpeg.org/project/ffmpeg/patch/177767065817.63.1948165304485…