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… (CVE-2026-64832)
Description
FFmpeg versions 4.4 through 8.1.2 contain a double-free vulnerability in the NVIDIA NVDEC hardware decoder component within libavcodec/nvdec.c. This flaw can be triggered by a crafted video file, causing memory corruption by freeing the same decoder context memory twice on an error path. The vulnerability may lead to application crashes or other impacts in FFmpeg-based applications using NVDEC hardware acceleration. A patch is available to address this issue.
CVSS v3.1
Score 8.8high
Affected software
pkg:deb/ubuntu/libav?arch=source&distro=esm-infra-legacy/trustypkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps/jammypkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps/noblepkg:deb/ubuntu/ffmpeg?arch=source&distro=stonkingpkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps/resoluteRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
A double-free vulnerability exists in FFmpeg versions 4.4 through 8.1.2 in the NVIDIA NVDEC hardware decoder component (libavcodec/nvdec.c). The flaw occurs when the error handling path frees memory twice for the same decoder context, which can be triggered by a specially crafted video file. This results in memory corruption that may cause application crashes or other adverse effects in applications utilizing FFmpeg with NVDEC hardware acceleration.
Potential Impact
Successful exploitation of this vulnerability can cause memory corruption leading to application crashes or potentially other impacts in FFmpeg-based applications that use NVIDIA NVDEC hardware acceleration. The vulnerability affects confidentiality, integrity, and availability as indicated by the CVSS vector (C:H/I:H/A:H).
Mitigation Recommendations
A patch is available for this vulnerability. Users should upgrade to FFmpeg version 8.1.3 or later where the issue is fixed. Applying the official fix will mitigate the risk associated with this double-free vulnerability.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-jc8j-9799-c943
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-64832"]
- Database Specific Severity
- HIGH
- Cvss Version
- 4.0
Threat ID: 6a6151239c2644c7f8da624c
Added to database: 07/22/2026, 23:24:19 UTC
Last enriched: 10/18/2026, 03:39:17 UTC
Last updated: 10/21/2026, 13:20:23 UTC
Views: 95
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