CVE-2019-6568: Siemens CP1604 Firmware

High severity, CVSS 7.5. EPSS: 1.4% chance of exploitation in the next 30 days.

The webserver of the affected devices contains a vulnerability that may lead to a denial of service condition. An attacker may cause a denial of service situation which leads to a restart of the webserver of the affected device. The security vulnerability could be exploited by an attacker with network access to the affected systems. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise availability of the device.

Affected products

  • Siemens CP1604 Firmware: any version
  • Siemens CP1616 Firmware: any version
  • Siemens SIMATIC CP343-1 Advanced Firmware: any version
  • Siemens SIMATIC CP443-1 Advanced Firmware: any version
  • Siemens SIMATIC CP443-1 Firmware: any version
  • Siemens SIMATIC CP443-1 Opc Ua: any version
  • Siemens SIMATIC Et 200 SP Open Controller CPU 1515sp PC2 Firmware: before 2.7 (fixed in 2.7)
  • Siemens SIMATIC Et 200 SP Open Controller CPU 1515sp Pc Firmware: before 2.1.6 (fixed in 2.1.6)
  • Siemens SIMATIC HMI Comfort Outdoor Panels Firmware: before 15.1 (fixed in 15.1); version 15.1 only
  • Siemens SIMATIC HMI Comfort Panels Firmware: before 15.1 (fixed in 15.1); version 15.1 only
  • Siemens SIMATIC HMI Ktp Mobile Panels KTP400F Firmware: before 15.1 (fixed in 15.1); version 15.1 only
  • Siemens SIMATIC HMI Ktp Mobile Panels KTP700 Firmware: before 15.1 (fixed in 15.1); version 15.1 only
  • Siemens SIMATIC HMI Ktp Mobile Panels KTP700F Firmware: before 15.1 (fixed in 15.1); version 15.1 only
  • Siemens SIMATIC HMI Ktp Mobile Panels KTP900 Firmware: before 15.1 (fixed in 15.1); version 15.1 only
  • Siemens SIMATIC HMI Ktp Mobile Panels KTP900F Firmware: before 15.1 (fixed in 15.1); version 15.1 only
  • Siemens SIMATIC Ipc Diagmonitor: before 5.1.3 (fixed in 5.1.3)
  • Siemens SIMATIC RF181-Eip Firmware: any version
  • Siemens SIMATIC RF182C Firmware: any version
  • Siemens SIMATIC RF185C Firmware: before 1.1.0 (fixed in 1.1.0)
  • Siemens SIMATIC RF186C Firmware: before 1.1.0 (fixed in 1.1.0)
  • Siemens SIMATIC RF188C Firmware: before 1.1.0 (fixed in 1.1.0)
  • Siemens SIMATIC RF600R Firmware: before 3.2.1 (fixed in 3.2.1)
  • Siemens SIMATIC s7-1500 Firmware: before 2.6.1 (fixed in 2.6.1)
  • Siemens SIMATIC s7-1500 Software Controller: before 2.7 (fixed in 2.7)
  • Siemens SIMATIC s7-1500f Firmware: before 2.6.1 (fixed in 2.6.1)
  • and 28 more

Published 2019-04-17. Last modified 2026-06-17.