NULL pointer dereference in ImageMagick - #VU158781
Published: November 3, 2026
Vulnerability identifier: #VU158781
CSH Severity: Low
CVSS v4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-476
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 ImageMagick.
The vulnerability exists due to a null pointer dereference in ImageMagick's -subimage option handling when processing a list containing only one image. A remote attacker can trick a user into processing a single-image list with this option to trigger a crash.
Affected software
ImageMagick
Remediation
Install security update from vendor's website.
ImageMagick - update to 7.1.2-35