Reachable assertion in ImageMagick - #VU158694
Published: November 3, 2026
Vulnerability identifier: #VU158694
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-617
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service by crashing image processing.
The vulnerability exists due to a reachable assertion in the ImageMagick BGR, CMYK, GRAY, RGB, YCBCR and YUV decoders when processing crafted images. A remote attacker can supply a specially crafted image to trigger a crash and disrupt availability.
Affected software
ImageMagick
Remediation
Install security update from vendor's website.
ImageMagick - addressed in versions 6.9.13-60, 7.1.2-35