Publication Date:
Last Update:
Current Version: V1.2
CVSS v3.1 Base Score: 7.3
Affected Product and Versions Remediation

All versions

All versions < V9.1 SP2

All versions < V9.2 SP2

All versions < V5.7

All versions < V5.4 SP2 HF1
Update to V5.4 SP2 HF1 or later version
  • Restrict access on the engineering station to trusted users only

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 7.3
CWE CWE-732: Incorrect Permission Assignment for Critical Resource

V1.0 (2021-07-13): Publication Date
V1.1 (2021-09-14): Added solution for SINAMICS STARTER
V1.2 (2022-08-09): Added solution to SIMATIC PCS 7 V9.X and SIMATIC PDM