CVE-2021-27383

CVSS 7.5v3.1pub. 2021-05-12upd. 2026-06-02

A vulnerability has been identified in SIMATIC HMI Comfort Outdoor Panels V15 7\" & 15\" (incl. SIPLUS variants) (All versions < V15.1 Update 6), SIMATIC HMI Comfort Outdoor Panels V16 7\" & 15\" (incl. SIPLUS variants) (All versions < V16 Update 4), SIMATIC HMI Comfort Panels V15 4\" - 22\" (incl. SIPLUS variants) (All versions < V15.1 Update 6), SIMATIC HMI Comfort Panels V16 4\" - 22\" (incl. SIPLUS variants) (All versions < V16 Update 4), SIMATIC HMI KTP Mobile Panels V15 KTP400F, KTP700, KTP700F, KTP900 and KTP900F (All versions < V15.1 Update 6), SIMATIC HMI KTP Mobile Panels V16 KTP400F, KTP700, KTP700F, KTP900 and KTP900F (All versions < V16 Update 4), SIMATIC WinCC Runtime Advanced V15 (All versions < V15.1 Update 6), SIMATIC WinCC Runtime Advanced V16 (All versions < V16 Update 4), 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). SmartVNC has a heap allocation leak vulnerability in the server Tight encoder, which could result in a Denial-of-Service condition.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Siemens Simatic Hmi Comfort Outdoor Panels 15\"
HW
Siemens
all versions
Siemens Simatic Hmi Comfort Outdoor Panels 15\" Firmware
OS
Siemens
15.116< 16< 15.1
Siemens Simatic Hmi Comfort Outdoor Panels 7\"
HW
Siemens
all versions
Siemens Simatic Hmi Comfort Outdoor Panels 7\" Firmware
OS
Siemens
15.116< 16< 15.1
Siemens Simatic Hmi Comfort Panels 22\"
HW
Siemens
all versions
Siemens Simatic Hmi Comfort Panels 22\" Firmware
OS
Siemens
15.116< 15.1< 16
Siemens Simatic Hmi Comfort Panels 4\"
HW
Siemens
all versions
Siemens Simatic Hmi Comfort Panels 4\" Firmware
OS
Siemens
15.116< 16< 15.1
Siemens Simatic Hmi Ktp Mobile Panels Ktp400f
HW
Siemens
all versions
Siemens Simatic Hmi Ktp Mobile Panels Ktp400f Firmware
OS
Siemens
15.116< 16< 15.1
Siemens Simatic Hmi Ktp Mobile Panels Ktp700
HW
Siemens
all versions
Siemens Simatic Hmi Ktp Mobile Panels Ktp700f
HW
Siemens
all versions
Siemens Simatic Hmi Ktp Mobile Panels Ktp700f Firmware
OS
Siemens
15.116< 16< 15.1
Siemens Simatic Hmi Ktp Mobile Panels Ktp700 Firmware
OS
Siemens
15.116< 15.1< 16
Siemens Simatic Hmi Ktp Mobile Panels Ktp900
HW
Siemens
all versions
Siemens Simatic Hmi Ktp Mobile Panels Ktp900f
HW
Siemens
all versions
Siemens Simatic Hmi Ktp Mobile Panels Ktp900f Firmware
OS
Siemens
15.116< 15.1< 16
Siemens Simatic Hmi Ktp Mobile Panels Ktp900 Firmware
OS
Siemens
15.116< 16< 15.1
Siemens Simatic Wincc Runtime Advanced
APP
Siemens
15.116< 15.1< 16
Siemens Sinamics Gh150
HW
Siemens
all versions
Siemens Sinamics Gh150 Firmware
OS
Siemens
all versions
Siemens Sinamics Gl150
HW
Siemens
all versions
Siemens Sinamics Gl150 Firmware
OS
Siemens
all versions
Siemens Sinamics Gm150
HW
Siemens
all versions
Siemens Sinamics Gm150 Firmware
OS
Siemens
all versions
Siemens Sinamics Sh150
HW
Siemens
all versions
Siemens Sinamics Sh150 Firmware
OS
Siemens
all versions
Siemens Sinamics Sl150
HW
Siemens
all versions
Siemens Sinamics Sl150 Firmware
OS
Siemens
all versions
Siemens Sinamics Sm120
HW
Siemens
all versions