-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 # SSA-349422: Denial of Service Vulnerability in Industrial Real-Time (IRT) Devices Publication Date: 2019-10-08 Last Update: 2023-05-09 Current Version: 2.0 CVSS v3.1 Base Score: 7.5 SUMMARY ======= A vulnerability in the affected products could allow an unauthorized attacker with network access to perform a denial-of-service attack resulting in loss of real-time synchronization. Siemens has released updates for several affected products and recommends to update to the latest versions. Siemens recommends specific countermeasures for products where updates are not, or not yet available. AFFECTED PRODUCTS AND SOLUTION ============================== * SIMATIC S7-400 CPU 414-3 PN/DP V7 (6ES7414-3EM07-0AB0) - Affected versions: All versions < V7.0.3 - Remediation: Update to V7.0.3 or later version See recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/109752685/ * SIMATIC S7-400 CPU 414F-3 PN/DP V7 (6ES7414-3FM07-0AB0) - Affected versions: All versions < V7.0.3 - Remediation: Update to V7.0.3 or later version See recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/109752685/ * SIMATIC S7-400 CPU 416-3 PN/DP V7 (6ES7416-3ES07-0AB0) - Affected versions: All versions < V7.0.3 - Remediation: Update to V7.0.3 or later version See recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/109752685/ * SIMATIC S7-400 CPU 416F-3 PN/DP V7 (6ES7416-3FS07-0AB0) - Affected versions: All versions < V7.0.3 - Remediation: Update to V7.0.3 or later version See recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/109752685/ * Development/Evaluation Kits for PROFINET IO: DK Standard Ethernet Controller - Affected versions: All versions < V4.1.1 Patch 05 - Remediation: Update to V4.1.1 Patch 05 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/109755160/ * Development/Evaluation Kits for PROFINET IO: EK-ERTEC 200 - Affected versions: All versions < V4.5.0 Patch 01 - Remediation: Update to V4.5.0 Patch 01 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/109760397/ * Development/Evaluation Kits for PROFINET IO: EK-ERTEC 200P - Affected versions: All versions < V4.5.0 - Remediation: Update to V4.5.0 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/109750012/ * SCALANCE X-200IRT switch family (incl. SIPLUS NET variants) - Affected versions: All versions < V5.2.1 - Remediation: Update to V5.4.2 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/109763309 * SIMATIC ET200ecoPN, 4AO U/I 4xM12 (6ES7145-6HD00-0AB0) - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIMATIC ET200ecoPN, 8 DIO, DC24V/1,3A, 8xM12 (6ES7147-6BG00-0AB0) - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIMATIC ET200ecoPN, 8 DO, DC24V/2A, 8xM12 (6ES7142-6BR00-0AB0) - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIMATIC ET200ecoPN, 8AI RTD/TC 8xM12 (6ES7144-6KD50-0AB0) - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIMATIC ET200ecoPN, 8AI; 4 U/I; 4 RTD/TC 8xM12 (6ES7144-6KD00-0AB0) - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIMATIC ET200ecoPN, 8DI, DC24V, 4xM12 (6ES7141-6BF00-0AB0) - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIMATIC ET200ecoPN, 8DI, DC24V, 8xM12 (6ES7141-6BG00-0AB0) - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIMATIC ET200ecoPN, 8DO, DC24V/0,5A, 4xM12 (6ES7142-6BF50-0AB0) - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIMATIC ET200ecoPN, 8DO, DC24V/1,3A, 4xM12 (6ES7142-6BF00-0AB0) - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIMATIC ET200ecoPN, 8DO, DC24V/1,3A, 8xM12 (6ES7142-6BG00-0AB0) - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIMATIC ET200ecoPN, 16DI, DC24V, 8xM12 (6ES7141-6BH00-0AB0) - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIMATIC ET200ecoPN, 16DO DC24V/1,3A, 8xM12 (6ES7142-6BH00-0AB0) - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIMATIC ET200ecoPN: IO-Link Master (6ES7148-6JA00-0AB0) - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIMATIC ET200M (incl. SIPLUS variants) - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIMATIC ET200pro - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIMATIC ET200S (incl. SIPLUS variants) - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIMATIC ET 200pro IM154-8 PN/DP CPU (6ES7154-8AB01-0AB0) - Affected versions: All versions < V3.2.17 - Remediation: Update to V3.2.17 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/47354502/ * SIMATIC ET 200pro IM154-8F PN/DP CPU (6ES7154-8FB01-0AB0) - Affected versions: All versions < V3.2.17 - Remediation: Update to V3.2.17 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/47354578/ * SIMATIC ET 200pro IM154-8FX PN/DP CPU (6ES7154-8FX00-0AB0) - Affected versions: All versions < V3.2.17 - Remediation: Update to V3.2.17 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/62612377/ * SIMATIC ET 200S IM151-8 PN/DP CPU (6ES7151-8AB01-0AB0) - Affected versions: All versions < V3.2.17 - Remediation: Update to V3.2.17 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/47353723/ * SIMATIC ET 200S IM151-8F PN/DP CPU (6ES7151-8FB01-0AB0) - Affected versions: All versions < V3.2.17 - Remediation: Update to V3.2.17 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/47354354/ * SIMATIC NET CP 1604 - Affected versions: All versions < V2.8 - Remediation: Update to V2.8 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/109762689/ * SIMATIC NET CP 1616 - Affected versions: All versions < V2.8 - Remediation: Update to V2.8 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/109762689/ * SIMATIC PN/PN Coupler (incl. SIPLUS NET variants) - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIMATIC S7-300 CPU 314C-2 PN/DP (6ES7314-6EH04-0AB0) - Affected versions: All versions < V3.3.17 - Remediation: Update to V3.3.17 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/51466769/ * SIMATIC S7-300 CPU 315-2 PN/DP (6ES7315-2EH14-0AB0) - Affected versions: All versions < V3.2.17 - Remediation: Update to V3.2.17 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/40360647/ * SIMATIC S7-300 CPU 315F-2 PN/DP (6ES7315-2FJ14-0AB0) - Affected versions: All versions < V3.2.17 - Remediation: Update to V3.2.17 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/40944925/ * SIMATIC S7-300 CPU 315T-3 PN/DP (6ES7315-7TJ10-0AB0) - Affected versions: All versions < V3.2.17 - Remediation: Update to V3.2.17 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/85049260/ * SIMATIC S7-300 CPU 317-2 PN/DP (6ES7317-2EK14-0AB0) - Affected versions: All versions < V3.2.17 - Remediation: Update to V3.2.17 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/40362228/ * SIMATIC S7-300 CPU 317F-2 PN/DP (6ES7317-2FK14-0AB0) - Affected versions: All versions < V3.2.17 - Remediation: Update to V3.2.17 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/40945128/ * SIMATIC S7-300 CPU 317T-3 PN/DP (6ES7317-7TK10-0AB0) - Affected versions: All versions < V3.2.17 - Remediation: Update to V3.2.17 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/85059804/ * SIMATIC S7-300 CPU 317TF-3 PN/DP (6ES7317-7UL10-0AB0) - Affected versions: All versions < V3.2.17 - Remediation: Update to V3.2.17 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/85063017/ * SIMATIC S7-300 CPU 319-3 PN/DP (6ES7318-3EL01-0AB0) - Affected versions: All versions < V3.2.17 - Remediation: Update to V3.2.17 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/44442927/ * SIMATIC S7-300 CPU 319F-3 PN/DP (6ES7318-3FL01-0AB0) - Affected versions: All versions < V3.2.17 - Remediation: Update to V3.2.17 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/44443101/ * SIMATIC S7-400 CPU 412-2 PN V7 (6ES7412-2EK07-0AB0) - Affected versions: All versions < V7.0.3 - Remediation: Update to V7.0.3 or later version See recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/109752685/ * SIMATIC S7-400 PN/DP V6 and below CPU family (incl. SIPLUS variants) - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SIMATIC WinAC RTX 2010 (6ES7671-0RC08-0YA0) - Affected versions: All versions < V2010 SP3 - Remediation: Update to V2010 SP3 or later version and apply BIOS and Microsoft Windows updates See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/109765109/ * SIMATIC WinAC RTX F 2010 (6ES7671-1RC08-0YA0) - Affected versions: All versions < V2010 SP3 - Remediation: Update to V2010 SP3 or later version and apply BIOS and Microsoft Windows updates See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/109765109/ * SIMOTION - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SINAMICS DCM - Affected versions: All versions < V1.5 HF1 - Remediation: Update to V1.5 HF1 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/us/en/view/44029688 * SINAMICS DCP - Affected versions: All versions < V1.3 - Remediation: Update to V1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/de/view/109773826 * SINAMICS G110M V4.7 Control Unit - Affected versions: All versions < V4.7 SP10 HF5 - Remediation: Update to V4.7 SP10 HF5 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/us/en/view/109756820 * SINAMICS G120 V4.7 Control Unit (incl. SIPLUS variants) - Affected versions: All versions < V4.7 SP10 HF5 - Remediation: Update to V4.7 SP10 HF5 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/us/en/view/109756820 * SINAMICS G130 V4.7 Control Unit - Affected versions: All versions < V4.7 HF29 - Remediation: Update to V4.7 HF29 or upgrade to V5.2 HF2 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/103433117/ * SINAMICS G150 Control Unit - Affected versions: All versions < V4.8 - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SINAMICS GH150 V4.7 Control Unit - Affected versions: All versions - Remediation: Update to V4.8 SP2 HF9 See further recommendations from section "Workarounds and Mitigations" - Download: The update can be obtained from your Siemens representative or via Siemens customer service. * SINAMICS GL150 V4.7 Control Unit - Affected versions: All versions - Remediation: Update to V4.8 SP2 HF9 See further recommendations from section "Workarounds and Mitigations" - Download: The update can be obtained from your Siemens representative or via Siemens customer service. * SINAMICS GM150 V4.7 Control Unit - Affected versions: All versions - Remediation: Update to V4.8 SP2 HF9 See further recommendations from section "Workarounds and Mitigations" - Download: The update can be obtained from your Siemens representative or via Siemens customer service. * SINAMICS S110 Control Unit - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SINAMICS S120 V4.7 Control Unit and CBE20 (incl. SIPLUS variants) - Affected versions: All versions < V4.7 HF34 - Remediation: Update to V4.7 HF34 or upgrade to V5.2 HF2 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/us/en/view/92522512 * SINAMICS S150 Control Unit - Affected versions: All versions < V4.8 - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SINAMICS SL150 V4.7 Control Unit - Affected versions: All versions < V4.7 HF33 - Remediation: Update to V4.7 HF33 See further recommendations from section "Workarounds and Mitigations" - Download: The update can be obtained from your Siemens representative or via Siemens customer service. * SINAMICS SM120 V4.7 Control Unit - Affected versions: All versions - Remediation: Currently no fix is planned See recommendations from section "Workarounds and Mitigations" * SINUMERIK 828D - Affected versions: All versions < V4.8 SP5 - Remediation: Update to V4.8 SP5 or later version See further recommendations from section "Workarounds and Mitigations" - Download: The update can be obtained from your Siemens representative or via Siemens customer service. * SINUMERIK 840D sl - Affected versions: All versions < V4.8 SP5 - Remediation: Update to V4.8 SP5 or later version See further recommendations from section "Workarounds and Mitigations" - Download: The update can be obtained from your Siemens representative or via Siemens customer service. * SIPLUS ET 200S IM151-8 PN/DP CPU (6AG1151-8AB01-7AB0) - Affected versions: All versions < V3.2.17 - Remediation: Update to V3.2.17 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/47353723/ * SIPLUS ET 200S IM151-8F PN/DP CPU (6AG1151-8FB01-2AB0) - Affected versions: All versions < V3.2.17 - Remediation: Update to V3.2.17 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/47354354/ * SIPLUS S7-300 CPU 314C-2 PN/DP (6AG1314-6EH04-7AB0) - Affected versions: All versions < V3.3.17 - Remediation: Update to V3.3.17 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/51466769/ * SIPLUS S7-300 CPU 315-2 PN/DP (6AG1315-2EH14-7AB0) - Affected versions: All versions < V3.2.17 - Remediation: Update to V3.2.17 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/40360647/ * SIPLUS S7-300 CPU 315F-2 PN/DP (6AG1315-2FJ14-2AB0) - Affected versions: All versions < V3.2.17 - Remediation: Update to V3.2.17 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/40944925/ * SIPLUS S7-300 CPU 317-2 PN/DP (6AG1317-2EK14-7AB0) - Affected versions: All versions < V3.2.17 - Remediation: Update to V3.2.17 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/40362228/ * SIPLUS S7-300 CPU 317F-2 PN/DP (6AG1317-2FK14-2AB0) - Affected versions: All versions < V3.2.17 - Remediation: Update to V3.2.17 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/40945128/ * SIPLUS S7-400 CPU 414-3 PN/DP V7 (6AG1414-3EM07-7AB0) - Affected versions: All versions < V7.0.3 - Remediation: Update to V7.0.3 or later version See recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/109752685/ * SIPLUS S7-400 CPU 416-3 PN/DP V7 (6AG1416-3ES07-7AB0) - Affected versions: All versions < V7.0.3 - Remediation: Update to V7.0.3 or later version See recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/109752685/ WORKAROUNDS AND MITIGATIONS =========================== Siemens has identified the following specific workarounds and mitigations that customers can apply to reduce the risk: * Disable SNMP in Versions 1 and 2c, if supported by the product. * Enable SNMP v3 if required and supported by the product to restrict the vulnerability to authenticated users. * Enable access protection and change default credentials for SNMP service, if possible * Restrict network access to port 161/udp of the affected product. Product-specific remediations or mitigations can be found in the section "Affected Products and Solution". Please follow the "General Security Recommendations". 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: 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 PRODUCT DESCRIPTION =================== Development/Evaluation Kits for PROFINET IO are used to develop compact or modular PROFINET field devices. PN/PN coupler is used for connecting two PROFINET networks. SCALANCE X switches are used to connect industrial components like Programmable Logic Controllers (PLCs) or Human Machine Interfaces (HMIs). SIMATIC CP 1616 and CP 1604 are PCI/PCI-104 cards for high-performance connection of field devices to Industrial Ethernet with PROFINET. SIMATIC ET 200 Interface modules for PROFINET IO are used to connect field devices (IO Devices) to controllers (IO Controller) via PROFINET. SIMATIC S7-300 controllers have been designed for discrete and continuous control in industrial environments such as manufacturing, food and beverages, and chemical industries worldwide. SIMATIC S7-400 controllers have been designed for discrete and continuous control in industrial environments such as manufacturing, food and beverages, and chemical industries worldwide. SIMATIC WinAC RTX is a SIMATIC software controller for PC-based automation solutions. SIMOTION is a scalable high performance hardware and software system for motion control. SIPLUS extreme products are designed for reliable operation under extreme conditions and are based on SIMATIC, LOGO!, SITOP, SINAMICS, SIMOTION, SCALANCE or other devices. SIPLUS devices use the same firmware as the product they are based on. VULNERABILITY CLASSIFICATION ============================ 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/. * Vulnerability CVE-2019-10923 An attacker with network access to an affected product may cause a denial of service condition by breaking the real-time synchronization (IRT) of the affected installation. 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 ACKNOWLEDGMENTS =============== Siemens thanks the following party for its efforts: * Artem Zinenko from Kaspersky for pointing out that SIPLUS should also be mentioned ADDITIONAL INFORMATION ====================== For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories HISTORY DATA ============ V1.0 (2019-10-08): Publication Date V1.1 (2020-01-14): Added solution for SINAMICS SL150 V4.7, SIPLUS devices now explicitly mentioned in the list of affected products, correction in section "Workarounds and Mitigations" V1.2 (2020-02-11): Added solution for SINAMICS DCP V1.3 (2020-03-10): Added solution for SIMATIC S7-300 CPU family V1.4 (2020-08-11): Added SIMATIC ET200ecoPN product variants (MLFB IDs) that are not affected V1.5 (2021-02-09): Added additional SIMATIC ET200ecoPN model (6ES7148-6JG00-0BB0) as not affected V1.6 (2021-10-12): Clarified affected ET200ecoPN models V1.7 (2022-02-08): Clarified that no remediation is planned for ET200 devices V1.8 (2023-01-10): SIMATIC S7-300 CPU family expanded with product specific designations, patch links and MLFBs. Added fix for SINUMERIK 840D sl. V1.9 (2023-04-11): SIMATIC S7-400 CPU family expanded and fix added for supported versions, no fix planned for other S7-400 versions V2.0 (2023-05-09): Removed SIMATIC S7-400 CPU devices without fix, as they do not support PROFINET and are not affected TERMS OF USE ============ Siemens Security Advisories are subject to the terms and conditions contained in Siemens' underlying license terms or other applicable agreements previously agreed to with Siemens (hereinafter "License Terms"). To the extent applicable to information, software or documentation made available in or through a Siemens Security Advisory, the Terms of Use of Siemens' Global Website (https://www.siemens.com/terms_of_use, hereinafter "Terms of Use"), in particular Sections 8-10 of the Terms of Use, shall apply additionally. In case of conflicts, the License Terms shall prevail over the Terms of Use. 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