Out-of-bounds read via overflowed PFM size check
Published Aug 6, 2024 · Updated Nov 3, 2025
Out-of-bounds read in FFmpeg 7.0.0 and 7.0.1 allows remote attackers to read beyond a PFM input buffer through a crafted file. In pnm_decode_frame, the full-float PFM size check multiplies width, height, and 12 as a 32-bit integer, so overflow lets a truncated packet pass validation before the decoder reads 12 bytes per pixel. The path requires a user or application to decode the crafted PFM input; the invalid read exposes adjacent process memory or terminates the decoding process.
Summary
What happened
Out-of-bounds read in FFmpeg 7.0.0 and 7.0.1 allows remote attackers to read beyond a PFM input buffer through a crafted file. In pnm_decode_frame, the full-float PFM size check multiplies width, height, and 12 as a 32-bit integer, so overflow lets a truncated packet pass validation before the decoder reads 12 bytes per pixel. The path requires a user or application to decode the crafted PFM input; the invalid read exposes adjacent process memory or terminates the decoding process.
The record
- CVE
- CVE-2024-7055
- Published
- Aug 6, 2024
- Updated
- Nov 3, 2025
- Vendor
- FFmpeg
- Product
- FFmpeg
- Classifications
- CWE-122, CWE-787
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 6, 2024CVE publishedPublication date reported by the CVE source.
- Nov 3, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=7.0.0
- Affected versionversion=7.0.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
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Technologies
Your stack
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Your stack
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