CVEvulnerability

CVE-2021-31337

9.8 CRITICAL Published 2021-06-28 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-06-28
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
Weaknesses
CWE-306

Description

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 configurations

• siemens sinamics sl150 firmware • siemens sinamics sm150 firmware • siemens sinamics sm150i firmware

Related

Weakness · CWE (1)

  • CWE-306 Missing Authentication for Critical Functionality weakness

References