CVE-2019-10937: Siemens SIMATIC Tdc CP51M1 Firmware

High severity, CVSS 7.5. EPSS: 1.3% chance of exploitation in the next 30 days.

A vulnerability has been identified in SIMATIC TDC CP51M1 (All versions < V1.1.7). An attacker with network access to the device could cause a Denial-of-Service condition by sending a specially crafted UDP packet. The vulnerability affects the UDP communication of the device. The security vulnerability could be exploited without authentication. No user interaction is required to exploit this security vulnerability. Successful exploitation of the security vulnerability compromises availability of the targeted system. At the time of advisory publication no public exploitation of this security vulnerability was known.

Affected products

• Siemens SIMATIC Tdc CP51M1 Firmware: before 1.1.7 (fixed in 1.1.7)

Published 2019-09-13. Last modified 2026-06-17.