Vulnerability Details : CVE-2021-27388
SINAMICS medium voltage routable products are affected by a vulnerability in the Sm@rtServer component for remote access that could allow an unauthenticated attacker to cause a denial-of-service condition, and/or execution of limited configuration modifications and/or execution of limited control commands on the SINAMICS Medium Voltage Products, Remote Access (SINAMICS SL150: All versions, SINAMICS SM150: All versions, SINAMICS SM150i: All versions).
Vulnerability category: Input validationDenial of service
Products affected by CVE-2021-27388
- cpe:2.3:o:siemens:sinamics_sl150_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:sinamics_sm150_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:sinamics_sm150i_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-27388
0.22%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 61 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-27388
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2021-27388
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: productcert@siemens.com (Primary)
References for CVE-2021-27388
-
https://us-cert.cisa.gov/ics/advisories/icsa-21-131-04
Siemens SINAMICS Medium Voltage Products Remote Access (Update A) | CISANot Applicable
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