CVE-2025-66628: imagemagick Out-of-bounds Read

Vulnerability summary

CVE-2025-66628 is a high (CVSS 7.5) Out-of-bounds Read vulnerability in imagemagick. EPSS estimates a 0.51% chance of exploitation in the next 30 days, higher than 42.2% of scored vulnerabilities.

Timeline

1. 10-12-2025
   PublishedVulnerability first disclosed.
2. 11-12-2025
   Last modifiedVulnerability information updated.

Description

ImageMagick is a software suite to create, edit, compose, or convert bitmap images. In versions 7.1.2-9 and prior, the TIM (PSX TIM) image parser contains a critical integer overflow vulnerability in its ReadTIMImage function (coders/tim.c). The code reads width and height (16-bit values) from the file header and calculates image_size = 2 * width * height without checking for overflow. On 32-bit systems (or where size_t is 32-bit), this calculation can overflow if width and height are large (e.g., 65535), wrapping around to a small value. This results in a small heap allocation via AcquireQuantumMemory and later operations relying on the dimensions can trigger an out of bounds read. This issue is fixed in version 7.1.2-10.

• CWE-125Out-of-bounds ReadThe product reads data past the end, or before the beginning, of the intended buffer.