ImageMagick has an integer overflow in despeckle operation causing a heap buffer overflow on 32-bit builds
An integer overflow in the despeckle operation causes a heap buffer overflow on 32-bit builds that will result in an out of bounds write.
==1551685==ERROR: AddressSanitizer: heap-buffer-overflow on address 0xea2fb818 at pc 0x56cbc42a bp 0xffc4ce48 sp 0xffc4ce38
WRITE of size 8 at 0xea2fb818 thread T0
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| .NET (NuGet) | Magick.NET-Q16-AnyCPU | < 14.12.0 | 14.12.0 |
| .NET (NuGet) | Magick.NET-Q16-HDRI-AnyCPU | < 14.12.0 | 14.12.0 |
| .NET (NuGet) | Magick.NET-Q16-HDRI-x86 | < 14.12.0 | 14.12.0 |
| .NET (NuGet) | Magick.NET-Q16-x86 | < 14.12.0 | 14.12.0 |
| .NET (NuGet) | Magick.NET-Q8-AnyCPU | < 14.12.0 | 14.12.0 |
| .NET (NuGet) | Magick.NET-Q8-x86 | < 14.12.0 | 14.12.0 |
References
- https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-26qp-ffjh-2x4v
- https://nvd.nist.gov/vuln/detail/CVE-2026-34238
- https://github.com/ImageMagick/ImageMagick/commit/bcd8519c70ecd9ebbc180920f2cf97b267d1f440
- https://github.com/ImageMagick/ImageMagick
- https://github.com/ImageMagick/ImageMagick/releases/tag/7.1.2-19
- https://github.com/dlemstra/Magick.NET/releases/tag/14.12.0
- CVSS vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H- Weakness (CWE)
CWE-190, CWE-787- Platform
- .NET (NuGet)
- Package
Magick.NET-Q16-AnyCPU, Magick.NET-Q16-HDRI-AnyCPU, Magick.NET-Q16-HDRI-x86- Disclosed
- 13.04.2026
- Updated
- 11.10.2026 11:23
Sources and licenses
OSV / GitHub Advisory Database - GHSA-26qp-ffjh-2x4v - CC BY 4.0
Vulnerability history: Magick.NET-Q8-x86
All published vulnerabilities of this package (.NET (NuGet)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 162
- First → latest
- 07.2025 09.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 26
- Medium 97
- Low 39
Disclosures per year
- 2025: 15
- 2026: 147
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ImageMagick has an integer overflow in despeckle operation causing a heap buffer overflow on 32-bit builds this entry
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