CVE-2016-7959: Siemens SIMATIC Step 7

Medium severity, CVSS 4.7. EPSS: 0.3% chance of exploitation in the next 30 days.

Siemens SIMATIC STEP 7 (TIA Portal) before 14 improperly stores pre-shared key data in TIA project files, which makes it easier for local users to obtain sensitive information by leveraging access to a file and conducting a brute-force attack.

Affected products

• Siemens SIMATIC Step 7: up to and including 13.010

Published 2016-10-13. Last modified 2026-06-17.