Out-of-bounds Write Affecting ffmpeg package, versions [4.4,9.0)
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-UNMANAGED-FFMPEG-18599385
- published9 Aug 2026
- disclosed7 Aug 2026
- creditAdrian Junge
Introduced: 7 Aug 2026
NewCVE-2026-70632 (opens in a new tab)How to fix?
Upgrade ffmpeg to version 9.0 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Write via the cfhd_decode() transform-type-2 reconstruction path in the native CFHD decoder. An attacker can corrupt heap memory by supplying a crafted AVI file during stream probing that makes the decoder process a non-Bayer plane whose logical lowpass output width exceeds the allocated plane width.