critical9.8
CVE-2021-31337
The Telnet service of the SIMATIC HMI Comfort Panels system component in affected products does not require authentication, which may allow a remote attacker t…
Impact
The Telnet service of the SIMATIC HMI Comfort Panels system component in affected products does not require authentication, which may allow a remote attacker to gain access to the device if the service is enabled. Telnet is disabled by default on the SINAMICS Medium Voltage Products (SINAMICS SL150: All versions, SINAMICS SM150: All versions, SINAMICS SM150i: All versions).
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Siemens | Sinamics Sl150 Firmware | All versions |
| Siemens | Sinamics Sm150 Firmware | All versions |
| Siemens | Sinamics Sm150i Firmware | All versions |