CVE-2025-55004

ImageMagick: heap-buffer overflow read in MNG magnification with alpha

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to version 7.1.2-1, ImageMagick is vulnerable to heap-buffer overflow read around the handling of images with separate alpha channels when performing image magnification in ReadOneMNGIMage. This can likely be used to leak subsequent memory contents into the output image. This issue has been patched in version 7.1.2-1.

Affected

ImageMagick

CVSS v3.1 NVD

4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

CVSS v3.1 GITHUB

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

EPSS

0.55% chance of exploitation in the next 30 days, 45th percentile

Published

2025-08-13

Proof-of-concept exploits (1)

• ImageMagick/ImageMagick/security/advisories/GHSA-cjc8-g9w8-chfw

Security advisories

• advisories/GHSA-cjc8-g9w8-chfw
• https://goo.gle/bigsleep

References

• CVE Record
• NVD entry