CVE-2017-9945: Siemens 7km Pac Switched Ethernet Profinet Expansion Module Firmware

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

In the Siemens 7KM PAC Switched Ethernet PROFINET expansion module (All versions < V2.1.3), a Denial-of-Service condition could be induced by a specially crafted PROFINET DCP packet sent as a local Ethernet (Layer 2) broadcast. The affected component requires a manual restart via the main device to recover.

Affected products

• Siemens 7km Pac Switched Ethernet Profinet Expansion Module Firmware: up to and including 2.1.2

Published 2017-08-30. Last modified 2026-06-17.