CVE-2015-1355: Siemens SIMATIC Step 7

Low severity, CVSS 2.1. EPSS: 0.4% chance of exploitation in the next 30 days.

Siemens SIMATIC STEP 7 (TIA Portal) before 13 SP1 uses a weak password-hash algorithm, which makes it easier for local users to determine cleartext passwords by reading a project file and conducting a brute-force attack.

Affected products

• Siemens SIMATIC Step 7: up to and including 13.0

Published 2015-02-18. Last modified 2026-06-17.