Publication Date:
Last Update:
Current Version: V2.3
CVSS v3.1 Base Score: 7.5
Affected Product and Versions Remediation

All versions

All versions

All versions < V4.6 Patch 01

All versions < V1.2.0

All versions

All versions

All versions

All versions

All versions

All versions

All versions

All versions

All versions

All versions

All versions

All versions

All versions

All versions

All versions

All versions < V4.3.0

All versions < V4.4.0

All versions

All versions

All versions

All versions

All versions < V1.2.1

All versions < V4.2.2

All versions < V4.0.1

All versions

All versions < V4.2.2

All versions < V4.2.1

All versions < V2.0

All versions

All versions

All versions

All versions < V4.2.1

All versions < V2.1

All versions < V3.X.17

All versions < V6.0.9

All versions

All versions

All versions < V8.2.2

All versions < V4.4.0

All versions < V2.0

All versions < V2.0

All versions < V1.1.8

All versions < V1.1.1

All versions < SIMATIC WinAC RTX 2010 SP3
Update to SIMATIC WinAC RTX 2010 SP3 and apply BIOS and Microsoft Windows updates

All versions < V1.5 HF1

All versions < V1.3

All versions < V4.7 SP10 HF5

All versions < V4.7 SP10 HF5

All versions < 4.8

All versions < 4.8

All versions
Upgrade to V4.8 SP2 HF9

All versions
Upgrade to V4.8 SP2 HF9

All versions
Upgrade to V4.8 SP2 HF9

All versions

All versions

All versions < 4.8

All versions < V4.7 HF33
Update to V4.7 HF33

All versions

All versions < V4.8 SP5
Update to V4.8 SP5

All versions
  • Restrict network access to affected devices.

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: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.

Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity

The vulnerability classification has been performed by using the CVSS scoring system in version 3.1 (CVSS v3.1) (https://www.first.org/cvss/). 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: https://cwe.mitre.org/.

CVSS v3.1 Base Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C
CWE CWE-400: Uncontrolled Resource Consumption

  • Artem Zinenko from Kaspersky for pointing out that SIPLUS should also be mentioned

https://www.siemens.com/cert/advisories

V1.0 (2019-10-08): Publication Date
V1.1 (2019-11-12): Added solution for SINAMICS S120 V4.7, SINAMICS S150, SINAMICS G130 V4.7, SINAMICS G150 and SINAMICS SL150 V4.7
V1.2 (2020-01-14): Added solution for SIMATIC S7-1200 and S7-1500 Software and Open Controller. SIPLUS devices now explicitly mentioned in the list of affected products
V1.3 (2020-02-11): Added solution for SINAMICS DCP
V1.4 (2020-03-10): Added solution for SIMATIC S7-300 CPU family
V1.5 (2020-04-14): Added solution for SIMATIC ET200MP IM155-5 PN HF
V1.6 (2020-07-14): Added SIMATIC TDC CP51M1 and CPU555 to the list of affected products
V1.7 (2020-08-11): Added solution for SIMATIC PN/PN Coupler. Added SIMATIC ET200ecoPN product variants (MLFB IDs) that are not affected
V1.8 (2020-09-08): Added solution for EK-ERTEC 200P and S7-410 V8
V1.9 (2021-01-12): Added solution for SIMATIC ET200SP IM155-6 PN HA and added ecoPN model (6ES7148-6JG00-0BB0) as not affected
V2.0 (2021-06-08): Added solution for SIMATIC ET200SP IM155-6 PN HS
V2.1 (2021-10-12): Clarified affected ET200ecoPN models
V2.2 (2022-02-08): Clarified that no remediation is planned for ET200 devices
V2.3 (2022-08-09): No fix planned for SIMATIC S7-400 PN/DP V6 and below CPU family