Siemens SCALANCE and RUGGEDCOM Devices Incorrect Authorization (CVE-2025-40568)

medium Tenable OT Security Plugin ID 505078

Synopsis

The remote OT asset is affected by a vulnerability.

Description

An internal session termination functionality in the web interface of affected products contains an incorrect authorization check vulnerability. This could allow an authenticated remote attacker with guest role to terminate legitimate users' sessions.

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

Solution

Refer to the vendor advisory.

Plugin Details

Severity: Medium

ID: 505078

File Name: tenable_ot_siemens_CVE-2025-40568.nasl

Version: 1.1

Type: remote

Family: Tenable.ot

Published: 2/10/2026

Updated: 2/10/2026

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v3

Risk Factor: Medium

Base Score: 4.3

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

Vulnerability Information

CPE: cpe:/o:siemens:scalance_xrm334_%282x230_v_ac%2c_12xfo%29_firmware:3.2, cpe:/o:siemens:scalance_xrm334_%282x230_v_ac%2c_8xfo%29_firmware:3.2, cpe:/o:siemens:scalance_xrm334_%28230_v_ac%2c_8xfo%29_firmware:3.2, cpe:/o:siemens:scalance_xch328_firmware:3.2, cpe:/o:siemens:scalance_xcm328_firmware:3.2, cpe:/o:siemens:scalance_xrm334_%28230v_ac%2c_2x10g%2c_24xsfp%2c_8xsfp%2b%29_firmware:3.2, cpe:/o:siemens:scalance_xrm334_%282x230v_ac%2c_2x10g%2c_24xsfp%2c_8xsfp%2b%29_firmware:3.2, cpe:/o:siemens:scalance_xrm334_%2824_v_dc%2c_8xfo%29_firmware:3.2, cpe:/o:siemens:scalance_xrm334_%28230_v_ac%2c_12xfo%29_firmware:3.2, cpe:/o:siemens:scalance_xrh334_%2824_v_dc%2c_8xfo%2c_cc%29_firmware:3.2, cpe:/o:siemens:ruggedcom_rst2428p_firmware:3.2, cpe:/o:siemens:scalance_xrm334_%2824v_dc%2c_2x10g%2c_24xsfp%2c_8xsfp%2b%29_firmware:3.2, cpe:/o:siemens:scalance_xcm324_firmware:3.2, cpe:/o:siemens:scalance_xcm332_firmware, cpe:/o:siemens:scalance_xrm334_%2824_v_dc%2c_12xfo%29_firmware:3.2

Required KB Items: Tenable.ot/Siemens

Exploit Ease: No known exploits are available

Patch Publication Date: 6/10/2025

Vulnerability Publication Date: 6/10/2025

Reference Information

CVE: CVE-2025-40568

CWE: 863

Detections

Analytics