Detections
Analytics

ImageMagick 7.x < 7.1.2-19 Heap Buffer Overflow

medium Nessus Plugin ID 327614

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Synopsis

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

Description

The remote host has a version of ImageMagick installed that is 7.x prior to 7.1.2-19. It is, therefore, affected by a heap buffer overflow vulnerability:

 - ImageMagick before 7.1.2-19 contains a heap buffer overflow vulnerability in the FTXT encoder due to missing boundary checks when parsing ftxt:format. Remote attackers can trigger an out of bounds read by crafting malicious FTXT image files to cause denial of service or information disclosure. (CVE-2026-56374)

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 7.1.2-19 or later.

See Also

http://www.nessus.org/u?c77cc722

Plugin Details

Severity: Medium

ID: 327614

File Name: imagemagick_CVE-2026-56374.nasl

Version: 1.3

Type: Local

Agent: windows, macosx, unix

Family: Misc.

Published: 7/17/2026

Updated: 8/5/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.7

CVSS v2

Risk Factor: Medium

Base Score: 6.6

Temporal Score: 4.9

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

CVSS Score Source: CVE-2026-56374

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 4.8

Threat Score: 1.1

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/a:imagemagick:imagemagick

Required KB Items: installed_sw/ImageMagick

Exploit Ease: No known exploits are available

Patch Publication Date: 4/13/2026

Vulnerability Publication Date: 4/13/2026

Reference Information

CVE: CVE-2026-56374

IAVB: 2026-B-0196