Out-of-bounds Write Affecting ffmpeg package, versions [0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CONAN-FFMPEG-18302517
- published25 Jul 2026
- disclosed24 Jul 2026
- creditUnknown
Introduced: 24 Jul 2026
NewCVE-2026-66041 (opens in a new tab)How to fix?
There is no fixed version for ffmpeg.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Write in the vf_quirc filter. An attacker can corrupt heap memory and potentially execute arbitrary code by supplying a crafted PGS/SUP subtitle file with mismatched frame dimensions, where the second presentation has larger dimensions than the first, causing av_image_copy_plane to write data beyond the allocated buffer.