{"id":"CVE-2026-55597","aliases":["GHSA-c4v7-w88g-m6c4"],"title":"ImageMagick: Heap Buffer Over-Write in JP2 encoder when due to incorrect handling of arguments","summary":"ImageMagick: Heap Buffer Over-Write in JP2 encoder when due to incorrect handling of arguments","severity":"medium","cvss":5.5,"cwe":["CWE-682","CWE-787"],"vendor":"Magick","product":"Magick.NET-Q16-AnyCPU","ecosystem":"nuget","affected":["Magick.NET-Q16-AnyCPU < 14.15.0","Magick.NET-Q16-HDRI-AnyCPU < 14.15.0","Magick.NET-Q16-HDRI-OpenMP-arm64 < 14.15.0","Magick.NET-Q16-HDRI-x64 < 14.15.0","Magick.NET-Q16-HDRI-x86 < 14.15.0","Magick.NET-Q16-OpenMP-arm64 < 14.15.0","Magick.NET-Q16-OpenMP-x64 < 14.15.0","Magick.NET-Q16-arm64 < 14.15.0","Magick.NET-Q16-x64 < 14.15.0","Magick.NET-Q16-x86 < 14.15.0","Magick.NET-Q8-AnyCPU < 14.15.0","Magick.NET-Q8-OpenMP-arm64 < 14.15.0","Magick.NET-Q8-OpenMP-x64 < 14.15.0","Magick.NET-Q8-arm64 < 14.15.0","Magick.NET-Q8-x64 < 14.15.0","Magick.NET-Q8-x86 < 14.15.0","Magick.NET-Q16-HDRI-arm64 < 14.15.0"],"patched":["Magick.NET-Q16-AnyCPU 14.15.0","Magick.NET-Q16-HDRI-AnyCPU 14.15.0","Magick.NET-Q16-HDRI-OpenMP-arm64 14.15.0","Magick.NET-Q16-HDRI-x64 14.15.0","Magick.NET-Q16-HDRI-x86 14.15.0","Magick.NET-Q16-OpenMP-arm64 14.15.0","Magick.NET-Q16-OpenMP-x64 14.15.0","Magick.NET-Q16-arm64 14.15.0","Magick.NET-Q16-x64 14.15.0","Magick.NET-Q16-x86 14.15.0","Magick.NET-Q8-AnyCPU 14.15.0","Magick.NET-Q8-OpenMP-arm64 14.15.0","Magick.NET-Q8-OpenMP-x64 14.15.0","Magick.NET-Q8-arm64 14.15.0","Magick.NET-Q8-x64 14.15.0","Magick.NET-Q8-x86 14.15.0","Magick.NET-Q16-HDRI-arm64 14.15.0"],"published":"2026-07-24","updated":"2026-07-24","source":"GHSA","sourceUrl":"https://github.com/advisories/GHSA-c4v7-w88g-m6c4","references":[{"url":"https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-c4v7-w88g-m6c4"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55597"},{"url":"https://github.com/dlemstra/Magick.NET/releases/tag/14.15.0"},{"url":"https://github.com/advisories/GHSA-c4v7-w88g-m6c4"}],"tags":["ghsa","nuget"],"epss":0.00148,"epssPercentile":0.0437,"ingestedAt":"2026-07-24T14:29:29.279Z","slug":"CVE-2026-55597","body":"## Overview\n\nDue to incorrect handling of arguments a heap buffer over-write can occur in the JP2 encoder.\n\n## Affected packages\n\n- `Magick.NET-Q16-AnyCPU < 14.15.0`\n- `Magick.NET-Q16-HDRI-AnyCPU < 14.15.0`\n- `Magick.NET-Q16-HDRI-OpenMP-arm64 < 14.15.0`\n- `Magick.NET-Q16-HDRI-x64 < 14.15.0`\n- `Magick.NET-Q16-HDRI-x86 < 14.15.0`\n- `Magick.NET-Q16-OpenMP-arm64 < 14.15.0`\n- `Magick.NET-Q16-OpenMP-x64 < 14.15.0`\n- `Magick.NET-Q16-arm64 < 14.15.0`\n- `Magick.NET-Q16-x64 < 14.15.0`\n- `Magick.NET-Q16-x86 < 14.15.0`\n- `Magick.NET-Q8-AnyCPU < 14.15.0`\n- `Magick.NET-Q8-OpenMP-arm64 < 14.15.0`\n- `Magick.NET-Q8-OpenMP-x64 < 14.15.0`\n- `Magick.NET-Q8-arm64 < 14.15.0`\n- `Magick.NET-Q8-x64 < 14.15.0`\n- `Magick.NET-Q8-x86 < 14.15.0`\n- `Magick.NET-Q16-HDRI-arm64 < 14.15.0`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `Magick.NET-Q16-AnyCPU 14.15.0`\n- `Magick.NET-Q16-HDRI-AnyCPU 14.15.0`\n- `Magick.NET-Q16-HDRI-OpenMP-arm64 14.15.0`\n- `Magick.NET-Q16-HDRI-x64 14.15.0`\n- `Magick.NET-Q16-HDRI-x86 14.15.0`\n- `Magick.NET-Q16-OpenMP-arm64 14.15.0`\n- `Magick.NET-Q16-OpenMP-x64 14.15.0`\n- `Magick.NET-Q16-arm64 14.15.0`\n- `Magick.NET-Q16-x64 14.15.0`\n- `Magick.NET-Q16-x86 14.15.0`\n- `Magick.NET-Q8-AnyCPU 14.15.0`\n- `Magick.NET-Q8-OpenMP-arm64 14.15.0`\n- `Magick.NET-Q8-OpenMP-x64 14.15.0`\n- `Magick.NET-Q8-arm64 14.15.0`\n- `Magick.NET-Q8-x64 14.15.0`\n- `Magick.NET-Q8-x86 14.15.0`\n- `Magick.NET-Q16-HDRI-arm64 14.15.0`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}