Low severity3.3NVD Advisory· Published Nov 9, 2026

CVE-2026-125268

Description

FFmpeg through 9.0.2 contains an uninitialized memory disclosure vulnerability in the CineForm HD decoder that allows attackers to leak heap memory via unzeroed idwt_tmp buffers in libavcodec/cfhd.c. Attackers can supply a crafted CFHD file with an ImageHeight tag exceeding coded band heights, causing uninitialized heap bytes to be filtered into decoded video output.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

FFmpeg/Ffmpegllm-fuzzy
Range: <=9.0.2

Patches

Vulnerability mechanics

References

code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25718nvd
github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/cfhd.cnvd
github.com/FFmpeg/FFmpeg/commit/0bfa350291b2118f6d590263dc1ee9cea766c0f1nvd
www.vulncheck.com/advisories/ffmpeg-through-9.0.2-uninitialized-heap-memory-disclosure-in-cfhd-decodernvd

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cvss	0.214
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000