CVE-2022-38465

What it is

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.

At a glance

Exploitability

Can be exploited locally on the machine without logging in. High risk of data exposure, data tampering, service disruption.

Exploit odds

0.2% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2022-10-11 11:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 04:56 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.2% in the next 30 days (EPSS).
• Severity: 9.3 CRITICAL (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2022-10-11 11:15 UTC

Last modified

2026-06-17 04:56 UTC

Exploit probability

0.2% · EPSS, next 30 days

Weakness

CWE-522

Record status

Modified

Affected

• Siemens Simatic Et 200 Sp Open Controller Cpu 1515sp pc2 Firmware < 21.9
• Siemens Simatic Et 200 Sp Open Controller Cpu 1515sp Pc Firmware
• 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

Attack profile CVSS 3.1 · 9.3

Attack vector

Local

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2022-38465.md and follow it. Check whether this project is affected by CVE-2022-38465. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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