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CVE-2026-55577

ImageMagick: ImageMagick: Heap buffer overflow in MVG decoder allows out-of-bounds write

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Severity

Moderate

Red Hat Product Security

5.9

CVSS 3.1

Review impact separately from score.

Published · July 2, 2026

Updated · July 2, 2026

Description

A flaw was found in ImageMagick, free and open-source software for editing and manipulating digital images. A heap buffer overflow occurs in the MVG (Magick Vector Graphics) decoder when processing a specially crafted image. This vulnerability could allow an attacker to cause an out-of-bounds write, potentially leading to a denial of service or other impacts.

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

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

CVSS / CWE

CVSS 3.1 · 5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-787 · Out-of-bounds Write