CVE-2026-64685

Analyzed Analyzed - Analysis Complete

Heap Buffer Over-Read 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 7.1.2-27, the BGR decoder does not check for an end-of-file in every location so a crafted image could result in an heap buffer over-read. This issue has been fixed in version 7.1.2-27.

CVSS 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-2026-64685

Affected Vendors & Products

Vendor	Product	Version / Range
imagemagick	imagemagick	to 7.1.2-27 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-125	The product reads data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This vulnerability is a heap buffer over-read in ImageMagick's BGR decoder. It occurs because the software fails to check for end-of-file in every location when processing images. A crafted image could exploit this to read memory outside the intended buffer, potentially exposing sensitive data.

Detection Guidance

To detect this vulnerability, check the installed version of ImageMagick using the command: identify -version or magick -version. If the version is below 7.1.2-27, the system is vulnerable.

Impact Analysis

The vulnerability allows remote attackers to read memory contents by providing a specially crafted image. This could lead to information disclosure, such as exposing sensitive data in memory. No privileges or user interaction are required for exploitation.

Compliance Impact

This vulnerability could potentially expose sensitive information due to heap buffer over-reads, which may lead to unauthorized data disclosure. This could impact compliance with GDPR (data protection) and HIPAA (health data privacy) by increasing the risk of data breaches or unauthorized access to personal or sensitive information.

Mitigation Strategies

Immediately update ImageMagick to version 7.1.2-27 or later. If updating is not possible, restrict access to image processing functions or disable the BGR decoder if feasible.

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