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ImageMagick 7.x < 7.1.2-24 Heap Buffer Over-write (CVE-2026-48724)

medium Nessus Plugin ID 321444

Synopsis

The remote host has an application installed that is affected by a heap buffer over-write vulnerability.

Description

The remote host has a version of ImageMagick 7.x installed that is prior to 7.1.2-24. It is, therefore, affected by a heap buffer over-write vulnerability:

 - When using an image with mask the Floyd-Steinberg dithering method will cause a negative heap buffer over-write.
 (CVE-2026-48724)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to ImageMagick version 7.1.2-24 or later.

See Also

http://www.nessus.org/u?0931dc94

Plugin Details

Severity: Medium

ID: 321444

File Name: imagemagick_CVE-2026-48724.nasl

Version: 1.1

Type: Local

Agent: windows, macosx, unix

Family: Misc.

Published: 6/17/2026

Updated: 6/17/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-48724

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Vulnerability Information

CPE: cpe:/a:imagemagick:imagemagick

Required KB Items: installed_sw/ImageMagick

Patch Publication Date: 5/30/2026

Vulnerability Publication Date: 5/30/2026

Reference Information

CVE: CVE-2026-48724