CVE-2026-40169
ImageMagick: Magick.NET: ImageMagick: Denial of Service via crafted image leading to out-of-bounds write
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · April 14, 2026
Updated · August 18, 2026
Description
A flaw was found in ImageMagick. A remote attacker could exploit this vulnerability by providing a specially crafted image file. When ImageMagick processes this image to generate a YAML or JSON output, it can lead to an out-of-bounds heap write, causing the application to crash. This results in a denial of service.
CVSS score applicability
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.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVSS / CWE
CVSS 3.1 · 6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE-787 · Out-of-bounds Write