Danfoss AK-SM800A Command Injection (CVE-2025-41451)

high Tenable OT Security Plugin ID 506212

Synopsis

The remote OT asset is affected by a vulnerability.

Description

Improper neutralization of alarm-to-mail configuration fields used in an OS shell Command ('Command Injection') in Danfoss AK-SM8xxA Series prior to version 4.3.1, leading to a potential post-authenticated remote code execution on an attacked system.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

The following text was originally created by the Cybersecurity and Infrastructure Security Agency (CISA). The original can be found at CISA.gov.

Danfoss created release R4.2 to address CVE-2025-41450 and release R4.3.1 to address CVE-2025-41451 and CVE-2025-41452.
Users can obtain and install the latest version by following the AK-SM 800A Software Upgrade Process.
For more information, see the Danfoss security advisories.

Plugin Details

Severity: High

ID: 506212

File Name: tenable_ot_danfoss_CVE-2025-41451.nasl

Version: 1.1

Type: Remote

Family: Tenable.ot

Published: 10/13/2026

Updated: 10/13/2026

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.47

CVSS v3

Risk Factor: High

Base Score: 7.6

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

CVSS v4

Risk Factor: High

Base Score: 8.7

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

Vulnerability Information

CPE: cpe:/o:danfoss:ak-sm_800a_firmware

Required KB Items: Tenable.ot/Danfoss

Patch Publication Date: 8/1/2025

Vulnerability Publication Date: 8/1/2025

Reference Information

CVE: CVE-2025-41451

CWE: 77

ICSA: 25-140-03

Detections

Analytics