CVE-2026-46559

ImageMagick: ImageMagick: Denial of service via heap buffer overwrite in JP2 processing

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Severity

Moderate

Red Hat Product Security

6.2

CVSS 3.1

Review impact separately from score.

Published · June 11, 2026

Updated · August 18, 2026

Description

A flaw was found in ImageMagick, a free and open-source software used for editing and manipulating digital images. An incorrect check during JPEG 2000 (JP2) image processing, when certain options are specified, can lead to a heap buffer overwrite of a single byte. This vulnerability could allow a local attacker to cause a denial of service (DoS) by crashing the application.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 6.2
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-787 · Out-of-bounds Write