CVE-2015-1356: Siemens SIMATIC Step 7

Medium severity, CVSS 4.4. EPSS: 0.5% chance of exploitation in the next 30 days.

Siemens SIMATIC STEP 7 (TIA Portal) before 13 SP1 determines a user's privileges on the basis of project-file fields that lack integrity protection, which allows remote attackers to establish arbitrary authorization data via a modified file.

Affected products

• Siemens SIMATIC Step 7: up to and including 13.0

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