CVE-2026-62946

MEDIUM

ImageMagick: Integer Overflow in JNX decoder causes heap buffer over-write when processing extremly large files on 32-bit builds

Title source: cna
STIX 2.1

Description

ImageMagick is free and open-source software used for editing and manipulating digital images. In versions prior to both 6.9.13-52 and 7.1.2-27, processing an extremely large JNX file on 32-bit platforms can cause an integer overflow, leading to a heap buffer over-write. This issue has been fixed in versions 6.9.13-52 and 7.1.2-27.

References (1)

Core 1
Core References

Scores

CVSS v3 5.1
EPSS 0.0013
EPSS Percentile 3.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-190
Status published
Products (2)
ImageMagick/ImageMagick < 6.9.13-52
ImageMagick/ImageMagick < 7.1.2-27
Published Jul 30, 2026
Tracked Since Jul 30, 2026