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, the UIL and XPM image encoder do not validate the pixel index value returned by `GetPixelIndex()` before using it as an array subscript. In HDRI builds, `Quantum` is a floating-point type, so pixel index values can be negative. An attacker can craft an image with negative pixel index values to trigger a global buffer overflow read during conversion, leading to information disclosure or a process crash. Versions 7.1.2-15 and 6.9.13-40 contain a patch.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-vpxv-r9pg-7gpr ImageMagick has Global Buffer Overflow (OOB Read) via Negative Pixel Index in UIL and XPM Writer
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 24 Feb 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Tue, 24 Feb 2026 10:00:00 +0000

Type Values Removed Values Added
First Time appeared Imagemagick
Imagemagick imagemagick
Vendors & Products Imagemagick
Imagemagick imagemagick

Tue, 24 Feb 2026 02:00:00 +0000

Type Values Removed Values Added
Description 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, the UIL and XPM image encoder do not validate the pixel index value returned by `GetPixelIndex()` before using it as an array subscript. In HDRI builds, `Quantum` is a floating-point type, so pixel index values can be negative. An attacker can craft an image with negative pixel index values to trigger a global buffer overflow read during conversion, leading to information disclosure or a process crash. Versions 7.1.2-15 and 6.9.13-40 contain a patch.
Title Imagemagick Has Global Buffer Overflow (OOB Read) via Negative Pixel Index in UIL and XPM Writer
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-02-24T01:18:33.031Z

Reserved: 2026-02-06T21:08:39.131Z

Link: CVE-2026-25898

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-02-24T02:16:01.000

Modified: 2026-02-24T14:13:49.320

Link: CVE-2026-25898

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-02-24T01:18:33Z

Links: CVE-2026-25898 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-02-24T09:54:02Z

Weaknesses