CVE-2026-62343

Analyzed Analyzed - Analysis Complete

Heap Buffer Overflow in ImageMagick

Publication date: 2026-07-30

Last updated on: 2026-08-03

Assigner: GitHub, Inc.

Description

ImageMagick is free and open-source software used for editing and manipulating digital images. In versions prior to 6.9.13-51 and 7.0.1-0 and above prior to 7.1.2-26, an invalid kernel can cause a heap buffer over-write when performing a morphology operation with a user supplied kernel. This issue has been fixed in versions 6.9.13-51 and 7.1.2-26.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-07-30

Last Modified

2026-08-03

Generated

2026-08-19

AI Q&A

2026-07-30

EPSS Evaluated

2026-08-18

NVD

CVE-2026-62343

Affected Vendors & Products

Vendor	Product	Version / Range
imagemagick	imagemagick	to 6.9.13-51 (exc)
imagemagick	imagemagick	From 7.0.0-0 (inc) to 7.1.2-26 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-190	The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

Attack-Flow Graph

Executive Summary

ImageMagick has a heap buffer overwrite vulnerability in versions before 6.9.13-51 and 7.1.2-26. It occurs during morphology operations when a user provides an invalid kernel, causing an integer overflow (CWE-190). This can lead to unexpected behavior and crashes.

Detection Guidance

Check ImageMagick version with 'convert --version' or 'magick --version'. If version is below 6.9.13-51 or 7.1.2-26, the system is vulnerable. Monitor for crashes during morphology operations.

Impact Analysis

This vulnerability can cause system crashes or instability due to heap corruption. It requires user interaction to trigger, meaning an attacker would need to convince a user to process a malicious image. Availability impact is high, but confidentiality and integrity are not directly affected.

Compliance Impact

This vulnerability does not directly impact compliance with GDPR or HIPAA as it is a technical flaw in ImageMagick's morphology operation that could lead to system availability issues. However, if exploited, it might cause disruptions in systems processing image data subject to these regulations, potentially affecting data integrity or availability.

Mitigation Strategies

Upgrade ImageMagick to version 6.9.13-51 or 7.1.2-26 or later. Avoid using untrusted kernel inputs in morphology operations until patched.

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