CVE-2016-2201: Siemens SIMATIC s7-1500 CPU Firmware

Medium severity, CVSS 5.3. EPSS: 2.9% chance of exploitation in the next 30 days.

Siemens SIMATIC S7-1500 CPU devices before 1.8.3 allow remote attackers to bypass a replay protection mechanism via packets on TCP port 102.

Affected products

• Siemens SIMATIC s7-1500 CPU Firmware: version 1.8.2 only

Published 2016-02-08. Last modified 2026-06-17.