CVE-2018-13814: Siemens SIMATIC HMI Comfort Outdoor Panels Firmware

High severity, CVSS 8.8. EPSS: 1.7% chance of exploitation in the next 30 days.

A vulnerability has been identified in SIMATIC HMI Comfort Panels 4" - 22" (All versions < V14), SIMATIC HMI Comfort Outdoor Panels 7" & 15" (All versions < V14), SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 and KTP900F (All versions < V14), SIMATIC WinCC Runtime Advanced (All versions < V14), SIMATIC WinCC Runtime Professional (All versions < V14), SIMATIC WinCC (TIA Portal) (All versions < V14), SIMATIC HMI Classic Devices (TP/MP/OP/MP Mobile Panel) (All versions). The integrated web server (port 80/tcp and port 443/tcp) of the affected devices could allow an attacker to inject HTTP headers. An attacker must trick a valid user who is authenticated to the device into clicking on a malicious link to exploit the vulnerability. At the time of advisory publication no public exploitation of this security vulnerability was known.

Affected products

• Siemens SIMATIC HMI Comfort Outdoor Panels Firmware: before 14.0 (fixed in 14.0)
• Siemens SIMATIC HMI Comfort Panels Firmware: before 14.0 (fixed in 14.0)
• Siemens SIMATIC HMI Ktp Mobile Panels KTP400F Firmware: before 14.0 (fixed in 14.0)
• Siemens SIMATIC HMI Ktp Mobile Panels KTP700 Firmware: before 14.0 (fixed in 14.0)
• Siemens SIMATIC HMI Ktp Mobile Panels KTP700F Firmware: before 14.0 (fixed in 14.0)
• Siemens SIMATIC HMI Ktp Mobile Panels KTP900 Firmware: before 14.0 (fixed in 14.0)
• Siemens SIMATIC HMI Ktp Mobile Panels KTP900F Firmware: before 14.0 (fixed in 14.0)
• Siemens SIMATIC HMI Mp Firmware: any version
• Siemens SIMATIC HMI Op Firmware: any version
• Siemens SIMATIC HMI TP Firmware: any version
• Siemens SIMATIC Wincc (tia Portal): before 14.0 (fixed in 14.0)
• Siemens SIMATIC Wincc Runtime: before 14.0 (fixed in 14.0)

Published 2018-12-13. Last modified 2026-06-17.