CVE-2021-27388
Last modified
CVE-2021-27388 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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).. EPSS estimates a 1.54% chance of exploitation in the next 30 days.
Description
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).
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Siemens | Sinamics Sl150 Firmware | All versions |
| Siemens | Sinamics Sm150 Firmware | All versions |
| Siemens | Sinamics Sm150i Firmware | All versions |
References
- https://us-cert.cisa.gov/ics/advisories/icsa-21-131-04Not Applicable
- https://us-cert.cisa.gov/ics/advisories/icsa-21-131-04Not Applicable
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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