Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ffmpeg | Ffmpeg | >= 4.4, <= 8.1.2 |
Related Weaknesses (CWE)
References
- https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/4c6217477fc64305055b37d9d1d0d76d30ePatch
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23664Issue TrackingPatch
- https://www.vulncheck.com/advisories/ffmpeg-double-free-in-nvdec-hardware-decodeThird Party Advisory
FAQ
What is CVE-2026-64832?
CVE-2026-64832 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 c...
How severe is CVE-2026-64832?
CVE-2026-64832 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-64832?
Check the references section above for vendor advisories and patch information. Affected products include: Ffmpeg Ffmpeg.