High severity7.5NVD Advisory· Published Mar 15, 2021· Updated Jun 17, 2026
CVE-2021-25676
CVE-2021-25676
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
12cpe:2.3:o:siemens:ruggedcom_rm1224_firmware:6.3:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:siemens:ruggedcom_rm1224_firmware:6.3:*:*:*:*:*:*:*
- (no CPE)range: V6.3
cpe:2.3:o:siemens:scalance_m-800_firmware:6.3:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:siemens:scalance_m-800_firmware:6.3:*:*:*:*:*:*:*
- (no CPE)range: V6.3
- cpe:2.3:o:siemens:scalance_s615_firmware:6.3:*:*:*:*:*:*:*
cpe:2.3:o:siemens:scalance_sc-600_firmware:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:siemens:scalance_sc-600_firmware:*:*:*:*:*:*:*:*range: >=2.1,<2.1.3
- (no CPE)range: >=V2.1 and <V2.1.3
- (no CPE)range: All Versions >= V2.1 and < V2.1.3
- Range: =V6.3
- Range: =V6.3
- Range: =V6.3
- Range: V6.3
Patches
Vulnerability mechanics
References
2- cert-portal.siemens.com/productcert/pdf/ssa-296266.pdfnvdVendor Advisory
- us-cert.cisa.gov/ics/advisories/icsa-21-068-02nvdThird Party AdvisoryUS Government Resource
News mentions
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