Publication Date:
Last Update:
Current Version: V1.2
CVSS v3.1 Base Score: 5.8
Affected Product and Versions Remediation

All versions < V5.2.3
only affected by CVE-2018-4848

All versions < V5.4.1

All versions < V3.2.7

All versions < V4.1.3
  • To exploit CVE-2018-4842, the attacker needs to be able to log into the administrative web application.
  • To exploit CVE-2018-4848 the attacker must trick the user to click on a link while being logged in.

Product-specific remediations or mitigations can be found in the section Affected Products and Solution.
Please follow the General Security Recommendations.

As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download:, and to follow the recommendations in the product manuals.

Additional information on Industrial Security by Siemens can be found at:

The vulnerability classification has been performed by using the CVSS scoring system in version 3.1 (CVSS v3.1) ( The CVSS environmental score is specific to the customer’s environment and will impact the overall CVSS score. The environmental score should therefore be individually defined by the customer to accomplish final scoring.

An additional classification has been performed using the CWE classification, a community-developed list of common software security weaknesses. This serves as a common language and as a baseline for weakness identification, mitigation, and prevention efforts. A detailed list of CWE classes can be found at:

CVSS v3.1 Base Score 5.5
CWE CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS v3.1 Base Score 5.8
CWE CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

  • Marius Rothenbücher for coordinated disclosure of CVE-2018-4842
  • Ali Abbasi for coordinated disclosure of CVE-2018-4848
  • Artem Zinenko from Kaspersky for pointing out that SIPLUS should also be mentioned
  • KraftCERT for coordination efforts

V1.0 (2018-06-12): Publication Date
V1.1 (2020-01-14): SIPLUS devices now explicitly mentioned in the list of affected products; added update information for SCALANCE X-300/X408
V1.2 (2022-12-13): Added SCALANCE X-200RNA switch family