#VU117664 Heap-based buffer overflow in FFmpeg - CVE-2025-9951
Published: October 27, 2025
Vulnerability identifier: #VU117664
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2025-9951
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
FFmpeg
FFmpeg
Software vendor:
ffmpeg.sourceforge.net
ffmpeg.sourceforge.net
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when handling JPEG2000 images. A remote attacker can pass specially crafted image to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.