CVE-2025-62594: imagemagick Buffer Overflow

Description

ImageMagick is a software suite to create, edit, compose, or convert bitmap images. ImageMagick versions prior to 7.1.2-8 are vulnerable to denial-of-service due to unsigned integer underflow and division-by-zero in the CLAHEImage function. When tile width or height is zero, unsigned underflow occurs in pointer arithmetic, leading to out-of-bounds memory access, and division-by-zero causes immediate crashes. This issue has been patched in version 7.1.2-8.

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CVSS v3.1 Score

4.7

MEDIUM

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-119 Buffer Overflow

CWE-191 CWE-191

CWE-369 CWE-369

Affected Products

Vendor	Product	Versions
imagemagick	imagemagick	< 7.1.2-8

References

Advisories & Patches

https://github.com/ImageMagick/ImageMagick/commit/7b47fe369eda90483402fcd3d78fa4167d3bb129 https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-wpp4-vqfq-v4hp

Exploits

https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-wpp4-vqfq-v4hp

Frequently Asked Questions

What is CVE-2025-62594? +

ImageMagick is a software suite to create, edit, compose, or convert bitmap images. ImageMagick versions prior to 7.1.2-8 are vulnerable to denial-of-service due to unsigned integer underflow and division-by-zero in the CLAHEImage function. When tile width or height is zero, unsigned underflow occurs in pointer arithmetic, leading to out-of-bounds memory access, and division-by-zero causes immediate crashes. This issue has been patched in version 7.1.2-8. It has a CVSS v3.1 base score of 4.7 (MEDIUM).

How severe is CVE-2025-62594? +

CVE-2025-62594 has a CVSS v3.1 score of 4.7 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-62594? +

CVE-2025-62594 affects products from imagemagick, specifically: imagemagick. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-62594? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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