CVE-2022-38465: A vulnerability has been identified in SIMATIC Drive Controller family (All versions < V2.9.2), SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. ...

Description

A vulnerability has been identified in SIMATIC Drive Controller family (All versions < V2.9.2), SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants) (All versions), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions < V21.9), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions < V4.5.0), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V2.9.2), SIMATIC S7-1500 Software Controller (All versions < V21.9), SIMATIC S7-PLCSIM Advanced (All versions < V4.0), SINUMERIK MC (All versions < V6.21), SINUMERIK ONE (All versions < V6.21). Affected products protect the built-in global private key in a way that cannot be considered sufficient any longer. The key is used for the legacy protection of confidential configuration data and the legacy PG/PC and HMI communication. This could allow attackers to discover the private key of a CPU product family by an offline attack against a single CPU of the family. Attackers could then use this knowledge to extract confidential configuration data from projects that are protected by that key or to perform attacks against legacy PG/PC and HMI communication.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.22%

12.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-522

Affected Software

Vendor	Product	Versions
Siemens	Simatic Et 200 Sp Open Controller Cpu 1515sp Pc2 Firmware	< 21.9
Siemens	Simatic Et 200 Sp Open Controller Cpu 1515sp Pc Firmware	All versions
Siemens	Simatic Drive Controller Cpu 1504d Tf Firmware	< 2.9.2
Siemens	Simatic Drive Controller Cpu 1507d Tf Firmware	< 2.9.2
Siemens	Simatic S7-1200 Cpu 12 1211c Firmware	< 4.5.0
Siemens	Simatic S7-1200 Cpu 12 1212c Firmware	< 4.5.0
Siemens	Simatic S7-1200 Cpu 12 1212fc Firmware	< 4.5.0
Siemens	Simatic S7-1200 Cpu 12 1214fc Firmware	< 4.5.0
Siemens	Simatic S7-1200 Cpu 12 1214c Firmware	< 4.5.0
Siemens	Simatic S7-1200 Cpu 12 1215fc Firmware	< 4.5.0
Siemens	Simatic S7-1200 Cpu 12 1215c Firmware	< 4.5.0
Siemens	Simatic S7-1200 Cpu 12 1217c Firmware	< 4.5.0
Siemens	Simatic S7-1500 Cpu 1510sp-1 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 1510sp Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 1511-1 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 151511c-1 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 151511f-1 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 1511t-1 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 1511tf-1 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 1512c-1 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 1512sp-1 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 1512spf-1 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 1513-1 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 1513f-1 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 1513r-1 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 15prof-2 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 15pro-2 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 1515-2 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 1515f-2 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 1515r-2 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 1515t-2 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 1516pro F Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 1516-3 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 1516f-3 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 1516t-3 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 1516tf-3 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 1517-3 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 1517f-3 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 1518-4 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 1518f-4 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 1518hf-4 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 1518t-4 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Cpu 1518tf-4 Firmware	< 2.9.2
Siemens	Simatic S7-1500 Software Controller	< 21.9
Siemens	Simatic S7-Plcsim Advanced Firmware	< 4.0

References

Timeline

Published: Oct 11, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-38465?

A vulnerability has been identified in SIMATIC Drive Controller family (All versions < V2.9.2), SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants) (All versions), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions < V21.9), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions < V4.5.0), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V2.9.2), SIMATIC S7-1500 Software Controller (All versions < V21.9), SIMATIC S7-PLCSIM Advanced (All versions < V4.0), SINUMERIK MC (All versions < V6.21), SINUMERIK ONE (All versions < V6.21). Affected products protect the built-in global private key in a way that cannot be considered sufficient any longer. The key is used for the legacy protection of confidential configuration data and the legacy PG/PC and HMI communication. This could allow attackers to discover the private key of a CPU product family by an offline attack against a single CPU of the family. Attackers could then use this knowledge to extract confidential configuration data from projects that are protected by that key or to perform attacks against legacy PG/PC and HMI communication.

How severe is CVE-2022-38465?

CVE-2022-38465 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.22% probability of exploitation in the next 30 days.

How do I fix CVE-2022-38465?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.