SSA-240718 V1.2 (Last Update: 2025-10-14): Insecure Storage of HTTPS CA Certificate in SIMATIC S7-1200 CPU V2

Risk Summary

<p>SIMATIC S7-1200 CPU V2 devices contain an insufficiently protected private key used for the Certificate Authority (CA) for HTTPS connections. Possession of this key could allow remote attackers to spoof the device’s web server by creating a forged web server certificate.</p> <p>Siemens recommends specific countermeasures for products where fixes are not, or not yet available. Refer to the chapter Additional Information for more details.</p>

Remediations

• Refer to Siemens ProductCERT advisory for patch and remediation guidance.

Affected Vendors

Affected Products (1)