Out-of-bounds read in ImageMagick - #VU158779
Published: November 3, 2026
Vulnerability identifier: #VU158779
CSH Severity: Medium
CVSS v4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to disclose sensitive information and cause a denial of service.
The vulnerability exists due to an out-of-bounds heap read in the ImageMagick TIFF decoder when processing a crafted TIFF image for encoding in a specific format. A remote attacker can trick a victim into processing such an image to read beyond heap buffer boundaries, potentially exposing sensitive information or crashing the application; the over-read can also lead to an out-of-bounds heap write.
Affected software
ImageMagick
Remediation
Install security update from vendor's website.
ImageMagick - addressed in versions 6.9.13-60, 7.1.2-35