Missing brute-force protection in Siemens RUGGEDCOM RM1224
Priority LOW 36CWE-307Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-307.
Summary
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.
Why it matters now
EPSS 0.01336 71st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Siemens | RUGGEDCOM RM1224 | V6.3 | — | No fix listed | CNA |
| Siemens | SCALANCE M-800 | V6.3 | — | No fix listed | CNA |
| Siemens | SCALANCE S615 | V6.3 | — | No fix listed | CNA |
| Siemens | SCALANCE SC-600 | All Versions >= V2.1 and < V2.1.3 | — | No fix listed | CNA |
- RUGGEDCOM RM1224 VendorSiemens Affected V6.3 Fixed in — No fix listed CNA
- SCALANCE M-800 VendorSiemens Affected V6.3 Fixed in — No fix listed CNA
- SCALANCE S615 VendorSiemens Affected V6.3 Fixed in — No fix listed CNA
- SCALANCE SC-600 VendorSiemens Affected All Versions >= V2.1 and < V2.1.3 Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:siemens:ruggedcom_rm1224_firmware:6.3:*:*:*:*:*:*:* | 6.3 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:ruggedcom_rm1224:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
| cpe:2.3:o:siemens:scalance_m-800_firmware:6.3:*:*:*:*:*:*:* | 6.3 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:scalance_m-800:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
| cpe:2.3:o:siemens:scalance_s615_firmware:6.3:*:*:*:*:*:*:* | 6.3 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:scalance_s615:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
| cpe:2.3:o:siemens:scalance_sc-600_firmware:*:*:*:*:*:*:*:* | 2.1 to before 2.1.3 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:scalance_sc-600:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
- cpe:2.3:o:siemens:ruggedcom_rm1224_firmware:6.3:*:*:*:*:*:*:* Versions 6.3 Vulnerable ·Siemens
- cpe:2.3:h:siemens:ruggedcom_rm1224:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
- cpe:2.3:o:siemens:scalance_m-800_firmware:6.3:*:*:*:*:*:*:* Versions 6.3 Vulnerable ·Siemens
- cpe:2.3:h:siemens:scalance_m-800:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
- cpe:2.3:o:siemens:scalance_s615_firmware:6.3:*:*:*:*:*:*:* Versions 6.3 Vulnerable ·Siemens
- cpe:2.3:h:siemens:scalance_s615:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
- cpe:2.3:o:siemens:scalance_sc-600_firmware:*:*:*:*:*:*:*:* Versions 2.1 to before 2.1.3 Vulnerable ·Siemens
- cpe:2.3:h:siemens:scalance_sc-600:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-25676
- 2026-10-03 Alias added: GHSA-pg2c-638q-xw3m
References
More Siemens Ruggedcom Rm1224 Firmware vulnerabilities
- TI-2017-10594 Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a… CVSS 3.1CRITICAL 9.8
- TI-2018-03924 Uncontrolled resource consumption in Linux Kernel CVSS 3.1HIGH 7.5
- TI-2020-17228 Resource allocation without limits in Siemens Development/Evaluation Kits for PROFINET… CVSS 4.0HIGH 8.7
- TI-2022-13661 Improper input validation in Siemens RUGGEDCOM RM1224 LTE EU CVSS 3.1HIGH 8.6
- TI-2021-07799 Stack-based buffer overflow in Siemens RUGGEDCOM RM1224 CVSS 3.1HIGH 8.8
- TI-2019-10399 Uncontrolled resource consumption in Siemens Development/Evaluation Kits for PROFINET IO… CVSS 3.1HIGH 7.5
Sources
- CVE-2021-25676 · CVE Program
- CVE-2021-25676 · NVD
- FIRST EPSS
- GHSA-pg2c-638q-xw3m · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences