CVE-2021-25676
Siemens · published 2021-03-15
Source record Collected from the National Vulnerability Database (NVD)
Description
Description by Siemens AG via the CVE Program.
A vulnerability has been identified in RUGGEDCOM RM1224 (V6.3), SCALANCE M-800 (V6.3), SCALANCE S615 (V6.3), SCALANCE SC-600 (All Versions >= V2.1 and < V2.1.3). Multiple failed SSH authentication attempts could trigger a temporary Denial-of-Service under certain conditions. When triggered, the device will reboot automatically.
Status at the source
- NVD status: Modified
Affected products, as the source lists them
| Vendor | Product | Versions |
|---|---|---|
| Siemens | RUGGEDCOM RM1224 | V6.3: affected |
| Siemens | SCALANCE M-800 | V6.3: affected |
| Siemens | SCALANCE S615 | V6.3: affected |
| Siemens | SCALANCE SC-600 | All Versions >= V2.1 and < V2.1.3: affected |
Products named in NVD's CPE match criteria (4)
cpe:2.3:o:siemens:ruggedcom_rm1224_firmware:6.3:*:*:*:*:*:*:*cpe:2.3:o:siemens:scalance_m-800_firmware:6.3:*:*:*:*:*:*:*cpe:2.3:o:siemens:scalance_s615_firmware:6.3:*:*:*:*:*:*:*cpe:2.3:o:siemens:scalance_sc-600_firmware:*:*:*:*:*:*:*:*
DeSpy has not checked any unit, hardware revision or firmware. A product missing here is not a statement that it is unaffected.
Scores, as their sources published them
- CVSS 3.1: 7.5 HIGH — as published by NIST (Primary)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0: 5 MEDIUM — as published by NIST (Primary)
AV:N/AC:L/Au:N/C:N/I:N/A:P
DeSpy does not score records. These are the sources' own values.
Weaknesses
Sources
References the source lists
- https://cert-portal.siemens.com/productcert/pdf/ssa-296266.pdf
- https://us-cert.cisa.gov/ics/advisories/icsa-21-068-02
- https://cert-portal.siemens.com/productcert/pdf/ssa-296266.pdf
- https://us-cert.cisa.gov/ics/advisories/icsa-21-068-02
Source dates: published 2021-03-15, last changed 2026-06-17. DeSpy's copy of this version is dated 2026-09-28.
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