Publication Date:
Last Update:
Current Version: V1.0
CVSS v3.1 Base Score: 9.8
Affected Product and Versions Remediation

Drives manufactured since 2015 and prior to 2022
Drives manufactured since 2022 are not affected

Contact your Siemens customer support for detailed information how to remediate the issue in affected drives
  • Disable the DHCP client and use static IP address configuration instead
  • Ensure that the drive internal network is not externally connected (which is the default configuration in all drives as described in the operational manual)

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 9.8
CWE CWE-122: Heap-based Buffer Overflow

The following models of SINAMICS PERFECT HARMONY GH180 Drives are affected by CVE-2021-29998:

  • Water-cooled drives: all drives manufactured since 2015 and prior to February 2020
  • Air-cooled drives: all drives manufactured since 2015 and prior to 2022, and with options G41 or G42 or with custom engineering

For more information regarding CVE-2021-29998 refer to the Siemens Security Advisory SSA-560465 (

V1.0 (2022-07-12): Publication Date