CVE-2020-15798: Siemens SIMATIC HMI Comfort Panels Firmware

Critical severity, CVSS 9.8. EPSS: 5.2% chance of exploitation in the next 30 days.

A vulnerability has been identified in SIMATIC HMI Comfort Panels (incl. SIPLUS variants) (All versions < V16 Update 3a), SIMATIC HMI KTP Mobile Panels (All versions < V16 Update 3a), SINAMICS GH150 (All versions), SINAMICS GL150 (with option X30) (All versions), SINAMICS GM150 (with option X30) (All versions), SINAMICS SH150 (All versions), SINAMICS SL150 (All versions), SINAMICS SM120 (All versions), SINAMICS SM150 (All versions), SINAMICS SM150i (All versions). Affected devices with enabled telnet service do not require authentication for this service. This could allow a remote attacker to gain full access to the device. (ZDI-CAN-12046)

Affected products

• Siemens SIMATIC HMI Comfort Panels Firmware: before 16.0 (fixed in 16.0); version 16.0 only
• Siemens SIMATIC HMI Ktp Mobile Panels Firmware: before 16.0 (fixed in 16.0); version 16.0 only
• Siemens Sinamics GH150 Firmware: affected versions not specified
• Siemens Sinamics GL150 Firmware: affected versions not specified
• Siemens Sinamics GM150 Firmware: affected versions not specified
• Siemens Sinamics SH150 Firmware: affected versions not specified
• Siemens Sinamics SL150 Firmware: affected versions not specified
• Siemens Sinamics SM120 Firmware: affected versions not specified
• Siemens Sinamics SM150 Firmware: affected versions not specified
• Siemens Sinamics SM150I Firmware: affected versions not specified

Published 2021-02-09. Last modified 2026-06-17.