ICSA-21-131-13: Siemens SINAMICS Medium Voltage Products Telnet (Update A)
CISA advisory · released 2021-05-11
Source record Collected from CISA's CSAF advisory feed
- Distribution label in the document: TLP:WHITE
- Revision 2, 2021-08-10 (final)
CISA's summary
Risk evaluation: Successful exploitation of this vulnerability could allow an attacker to gain full remote access to the HMI.
Products, as the advisory lists them
| Vendor | Product | Version |
|---|---|---|
| Siemens | SINAMICS GH150 | vers:all/* |
| Siemens | SINAMICS SH150 | vers:all/* |
| Siemens | SINAMICS GL150 (with option X30) | vers:all/* |
| Siemens | SINAMICS SM150i | vers:all/* |
| Siemens | SINAMICS SM150 | vers:all/* |
| Siemens | SINAMICS GM150 (with option X30) | vers:all/* |
| Siemens | SINAMICS SM120 | vers:all/* |
| Siemens | SINAMICS SL150 | vers:all/* |
DeSpy has not checked any unit, hardware revision or firmware.
Vulnerabilities in this advisory
- CVE-2020-15798 · CWE-306
The Telnet service of the HMI Comfort Panels system component in affected SINAMICS 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. CVE-2020-15798 has been assigned to this vulnerability. A CVSS v3 base score of 8.1 has been calculated; the CVSS vector string is (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).. --------- End Update A Part 2 of 3 ---------CVE-2020-15798 has been assigned to this vulnerability. A CVSS v3 base score of 8.1 has been calculated; the CVSS vector string is (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).
Acknowledgments, as the advisory lists them
- Siemens: reporting this vulnerability to CISA
The advisory's legal notice
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Sources
DeSpy's copy of this version is dated 2026-09-28.
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