ImageMagick < 6.9.13-52 / 7.x < 7.1.2-27 Heap Buffer Over-write (CVE-2026-62946)

medium Nessus Plugin ID 334465

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 installed that is prior to 6.9.13-52 or 7.x prior to 7.1.2-27. It is, therefore, affected by a heap buffer over-write vulnerability:

- Processing an extremely large JNX file on 32-bit platforms can cause an integer overflow, leading to a heap buffer over-write. (CVE-2026-62946)

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 6.9.13-52 / 7.1.2-27 or later.

See Also

http://www.nessus.org/u?0cbd3355

Plugin Details

Severity: Medium

ID: 334465

File Name: imagemagick_CVE-2026-62946.nasl

Version: 1.1

Type: Local

Agent: windows, macosx, unix

Family: Misc.

Published: 8/11/2026

Updated: 8/11/2026

Configuration: Enable paranoid mode, Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.74

CVSS v2

Risk Factor: Medium

Base Score: 4

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

CVSS Score Source: CVE-2026-62946

CVSS v3

Risk Factor: Medium

Base Score: 4.7

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

Vulnerability Information

CPE: cpe:/a:imagemagick:imagemagick

Required KB Items: Settings/ParanoidReport, installed_sw/ImageMagick

Patch Publication Date: 7/15/2026

Vulnerability Publication Date: 7/15/2026

Reference Information

CVE: CVE-2026-62946

CWE: 190

IAVB: 2026-B-0196