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Linux Distros Unpatched Vulnerability : CVE-2026-25794

high Nessus Plugin ID 299854

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Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

 - ImageMagick is free and open-source software used for editing and manipulating digital images.
 `WriteUHDRImage` in `coders/uhdr.c` uses `int` arithmetic to compute the pixel buffer size. Prior to version 7.1.2-15, when image dimensions are large, the multiplication overflows 32-bit `int`, causing an undersized heap allocation followed by an out-of-bounds write. This can crash the process or potentially lead to an out of bounds heap write. Version 7.1.2-15 contains a patch. (CVE-2026-25794)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2026-25794

Plugin Details

Severity: High

ID: 299854

File Name: unpatched_CVE_2026_25794.nasl

Version: 1.1

Type: local

Agent: unix

Family: Misc.

Published: 2/24/2026

Updated: 2/24/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.0

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-25794

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.5

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:imagemagick-devel, p-cpe:/a:centos:centos:imagemagick, p-cpe:/a:centos:centos:imagemagick-devel, p-cpe:/a:redhat:enterprise_linux:imagemagick-c%2b%2b, p-cpe:/a:centos:centos:imagemagick-c%2b%2b, cpe:/o:centos:centos:7, p-cpe:/a:redhat:enterprise_linux:imagemagick-c%2b%2b-devel, p-cpe:/a:centos:centos:imagemagick-perl, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:centos:centos:imagemagick-doc, p-cpe:/a:redhat:enterprise_linux:imagemagick, p-cpe:/a:centos:centos:imagemagick-c%2b%2b-devel, p-cpe:/a:redhat:enterprise_linux:imagemagick-perl, p-cpe:/a:redhat:enterprise_linux:imagemagick-doc

Required KB Items: Host/cpu, Host/local_checks_enabled, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 2/24/2026

Reference Information

CVE: CVE-2026-25794