CVE-2026-46559
Received Received - Intake
Heap Buffer Overflow in ImageMagick

Publication date: 2026-06-10

Last updated on: 2026-06-10

Assigner: GitHub, Inc.

Description
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-48 and 7.1.2-23, an incorrect check in the JP2 will result in an heap buffer over-write of a single byte when specifying certain options. This issue has been patched in versions 6.9.13-48 and 7.1.2-23.
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Meta Information
Published
2026-06-10
Last Modified
2026-06-10
Generated
2026-06-11
AI Q&A
2026-06-11
EPSS Evaluated
N/A
NVD
CVE-2026-46559
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
imagemagick imagemagick to 6.9.13-48 (exc)
imagemagick imagemagick to 7.1.2-23 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-787 The product writes data past the end, or before the beginning, of the intended buffer.
CWE-193 A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value.
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Executive Summary

This vulnerability exists in ImageMagick, a free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-48 and 7.1.2-23, there is an incorrect check in the JP2 (JPEG 2000) image format processing that can cause a heap buffer overwrite of a single byte when certain options are specified.

This means that when processing JP2 images with specific options, the software may write one byte beyond the allocated memory buffer, potentially leading to memory corruption.

The issue has been fixed in versions 6.9.13-48 and 7.1.2-23.

Impact Analysis

The vulnerability can lead to a heap buffer overwrite of a single byte, which is a form of memory corruption.

While the CVSS score indicates a low severity (4.0) with local attack vector and no impact on confidentiality or integrity, the availability of the system or application using ImageMagick could be affected.

Potential impacts include application crashes or unexpected behavior when processing certain JP2 images, which could disrupt services relying on ImageMagick.

Mitigation Strategies

To mitigate this vulnerability, you should update ImageMagick to version 6.9.13-48 or later, or version 7.1.2-23 or later, where the issue has been patched.

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