| Publication Date: |  | 
| Last Update: |  | 
| Current Version: | V1.6 | 
| CVSS v3.1 Base Score: | 7.9 | 
| Affected Product and Versions | Remediation | 
|---|---|
|  | 
                
                    
                        
                            Open for details
                        
                    
                
             | 
|  | 
                
                    
                        
                            Open for details
                        
                    
                
             | 
| All versions affected by CVE-2022-21198 | 
                
                    
                        
                            Currently no fix is available
                        
                    
                
             | 
Siemens has identified the following specific workarounds and mitigations that customers can apply to reduce the risk:
  
  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: 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
          
          
This chapter describes all vulnerabilities (CVE-IDs) addressed in this security advisory. Wherever applicable, it also documents the product-specific impact of the individual vulnerabilities.
| CVSS v3.1 Base Score | 7.9 | 
| CVSS v3.1 Vector | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H | 
| CWE | CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition | 
| V1.0 (2023-02-14): | Publication Date | 
| V1.1 (2023-05-09): | Added affected products SIMATIC IPC PX-39A and SIMATIC IPC PX-39A pro | 
| V1.2 (2023-07-11): | Added fix for SIMATIC Field PG M5 | 
| V1.3 (2023-08-08): | Added fix for SIMATIC IPC BX-39A, SIMATIC IPC PX-39A, and SIMATIC IPC PX-39A pro | 
| V1.4 (2024-07-09): | Added fix for SIMATIC IPC627E / IPC647E / IPC677E / IPC847E | 
| V1.5 (2024-08-13): | Added fix for SIMATIC Field PG M6 | 
| V1.6 (2025-04-08): | Added fix for SIMATIC IPC427E / IPC477E / IPC477E PRO |