CVE-2026-27798 MEDIUM

CVE-2026-27798: ImageMagick: Heap Buffer Over-read in WaveletDenoise when processing small images

Vendor Imagemagick
Product ImageMagick
Weakness CWE-125
Published February 25, 2026
Last update February 26, 2026
View on NVD All CVEs

CVSS base score

4.0/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity None

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

What the vulnerability does

01Description

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, a heap buffer over-read vulnerability occurs when processing an image with small dimension using the `-wavelet-denoise` operator. Versions 7.1.2-15 and 6.9.13-40 contain a patch.

Key dates

02Disclosure timeline

February 25, 2026 CVE published
February 26, 2026 Record updated