CVE-2026-64832

FFmpeg versions 4.4 through 8.1.2 contain a double-free vulnerability in the NVIDIA NVDEC hardware decoder within libavcodec/nvdec.c that allows attackers to trigger memory corruption by supplying a crafted video file. When no decoder surfaces remain, the ff_nvdec_start_frame_sep_ref error path frees memory via nvdec_fdd_priv_free while the calling layer subsequently frees the same frame description data, resulting in a double-free of the underlying decoder context in any FFmpeg-based application using NVDEC hardware-accelerated decoding.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/4c6217477fc64305055b37d9d1d0d76d30e37f97	Patch
https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23664	Issue Tracking Patch
https://www.vulncheck.com/advisories/ffmpeg-double-free-in-nvdec-hardware-decoder-via-nvdec-c	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*

History

24 Oct 2026, 15:10

Type	Values Removed	Values Added
Summary		(es) Las versiones de FFmpeg 4.4 a 8.1.2 contienen una vulnerabilidad de doble liberación de memoria (double-free) en el decodificador de hardware NVIDIA NVDEC dentro de libavcodec/nvdec.c que permite a los atacantes provocar corrupción de memoria al proporcionar un archivo de video manipulado. Cuando no quedan superficies de decodificador, la ruta de error ff_nvdec_start_frame_sep_ref libera memoria a través de nvdec_fdd_priv_free mientras que la capa llamante libera posteriormente los mismos datos de descripción de fotograma, lo que resulta en una doble liberación de memoria (double-free) del contexto del decodificador subyacente en cualquier aplicación basada en FFmpeg que utilice la decodificación acelerada por hardware NVDEC.

Information

Published : 2026-07-22 18:17

Updated : 2026-10-24 15:10

NVD link : CVE-2026-64832

Mitre link : CVE-2026-64832

CVE.ORG link : CVE-2026-64832

JSON object : View

Products Affected

ffmpeg

ffmpeg

CWE

CWE-415

Double Free

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