CVE-2021-25676

moderate-risk
Published 2021-03-15

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.

Do I need to act?

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0.33% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (4)

Ruggedcom Rm1224 Firmware
Scalance M-800 Firmware
Scalance Sc-600 Firmware

Affected Vendors

Siemens

References (4)

Vendor Advisory https://cert-portal.siemens.com/productcert/pdf/ssa-296266.pdf
Third Party Advisory https://us-cert.cisa.gov/ics/advisories/icsa-21-068-02
Vendor Advisory https://cert-portal.siemens.com/productcert/pdf/ssa-296266.pdf
Third Party Advisory https://us-cert.cisa.gov/ics/advisories/icsa-21-068-02
37
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 1/34 · Minimal
Exposure 10/34 · Low