CVE-2026-25987
Heap Buffer Over-read in ImageMagick MAP Decoder Causes Crashes
Publication date: 2026-02-24
Last updated on: 2026-02-25
Assigner: GitHub, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| imagemagick | imagemagick | to 6.9.13-40 (exc) |
| imagemagick | imagemagick | From 7.0.0-0 (inc) to 7.1.2-15 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-125 | The product reads data past the end, or before the beginning, of the intended buffer. |
Attack-Flow Graph
AI Powered Q&A
What immediate steps should I take to mitigate this vulnerability?
The primary mitigation step is to upgrade ImageMagick to version 7.1.2-15 or later, or 6.9.13-40 or later, where this vulnerability has been patched.
Until the upgrade is applied, avoid processing untrusted or specially crafted MAP image files with vulnerable versions of ImageMagick.
Can you explain this vulnerability to me?
[{'type': 'paragraph', 'content': "CVE-2026-25987 is a moderate severity vulnerability in ImageMagick's MAP image decoder. It is a heap buffer over-read issue that occurs when processing specially crafted MAP files. This means the decoder reads beyond the allocated memory buffer, which can cause the application to crash or unintentionally disclose parts of memory during image decoding."}] [1]
How can this vulnerability impact me? :
The vulnerability can lead to application crashes or unintended disclosure of memory contents when processing malicious MAP image files. This could potentially expose sensitive information stored in memory, although the impact is limited to confidentiality loss without affecting data integrity or system availability.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability occurs when ImageMagick processes specially crafted MAP files, causing heap buffer over-reads that may lead to crashes or memory disclosure.
To detect exploitation attempts on your system or network, monitor for crashes or abnormal behavior in ImageMagick processes, especially when handling MAP image files.
You can also scan files for suspicious or malformed MAP images before processing.
Specific commands to detect this vulnerability are not provided in the available resources.