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CVE-2026-64832

FFmpeg 4.4 - 8.1.2 Double-Free in NVDEC Hardware Decoder via nvdec.c

Published: Jul 22, 2026Updated: Jul 22, 2026 Sources: CVE List NVDCWE-415
8.8HIGH
NVD MITRE
EPSS Score
0.3%
Top 72.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-415

Affected Products

FFmpeg
oss-project·USaka libavcodec
FFmpegLibrary
OSS Libraries / generic-library

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23664
code.ffmpeg.org
https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/4c6217477fc64305055b37d9d1d0d76d30e37f97
code.ffmpeg.org
https://www.vulncheck.com/advisories/ffmpeg-double-free-in-nvdec-hardware-decoder-via-nvdec-c
vulncheck.com

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