CVE-2026-25986

A flaw was found in ImageMagick. A heap buffer overflow vulnerability exists when processing specially crafted YUV 4:2:2 (NoInterlace) images. A remote attacker could exploit this by providing a malicious image, leading to a denial of service (DoS) due to a write beyond the allocated buffer.

This MODERATE impact vulnerability in ImageMagick affects Red Hat Enterprise Linux 6 ELS and 7 ELS. A heap buffer overflow occurs when processing specially crafted YUV 4:2:2 images, which could lead to denial of service or potentially arbitrary code execution. Exploitation requires an attacker to provide a malicious image file to a system using ImageMagick.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

To mitigate this issue, avoid processing untrusted YUV 4:2:2 image files with ImageMagick. If ImageMagick is used in automated workflows or server-side applications, consider implementing sandboxing mechanisms to limit the potential impact of processing malicious input. Ensure that ImageMagick instances are not exposed to untrusted input sources without proper validation and isolation.