CVE-2014-8551: Siemens SIMATIC PCS7

High severity, CVSS 10.0. EPSS: 5.3% chance of exploitation in the next 30 days.

The WinCC server in Siemens SIMATIC WinCC 7.0 through SP3, 7.2 before Update 9, and 7.3 before Update 2; SIMATIC PCS 7 7.1 through SP4, 8.0 through SP2, and 8.1; and TIA Portal 13 before Update 6 allows remote attackers to execute arbitrary code via crafted packets.

Affected products

• Siemens SIMATIC PCS7: version 7.1 only; version 8.0 only; version 8.1 only
• Siemens SIMATIC Pcs 7: version 7.1 only
• Siemens SIMATIC Tiaportal: version 13.0 only
• Siemens SIMATIC Wincc: version 7.0 only; version 7.2 only; version 7.3 only

Published 2014-11-26. Last modified 2026-06-17.