CVE-2021-25667
8.8 · HIGHOverview
CVE-2021-25667 is a high-severity vulnerability affecting siemens ruggedcom_rm1224_firmware. It was published on March 15, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
A vulnerability has been identified in RUGGEDCOM RM1224 (All versions >= V4.3 and < V6.4), SCALANCE M-800 (All versions >= V4.3 and < V6.4), SCALANCE S615 (All versions >= V4.3 and < V6.4), SCALANCE SC-600 Family (All versions >= V2.0 and < V2.1.3), SCALANCE XB-200 (All versions < V4.1), SCALANCE XC-200 (All versions < V4.1), SCALANCE XF-200BA (All versions < V4.1), SCALANCE XM400 (All versions < V6.2), SCALANCE XP-200 (All versions < V4.1), SCALANCE XR-300WG (All versions < V4.1), SCALANCE XR500 (All versions < V6.2). Affected devices contain a stack-based buffer overflow vulnerability in the handling of STP BPDU frames that could allow a remote attacker to trigger a denial-of-service condition or potentially remote code execution. Successful exploitation requires the passive listening feature of the device to be active.
Remediation
Check the references section for vendor advisories and patches from siemens. Update ruggedcom_rm1224_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| siemens | ruggedcom_rm1224_firmware | >= 4.3, < 6.4 | Affected |
| siemens | scalance_m-800_firmware | >= 4.3, < 6.4 | Affected |
| siemens | scalance_s615_firmware | >= 4.3, < 6.4 | Affected |
| siemens | scalance_x300wg_firmware | >= 0, < 4.1 | Affected |
| siemens | scalance_xm400_firmware | >= 0, < 6.2 | Affected |
| siemens | scalance_xr500_firmware | >= 0, < 6.2 | Affected |
| siemens | scalance_sc622-2c_firmware | 0 | Affected |
| siemens | scalance_sc632-2c_firmware | 0 | Affected |
| siemens | scalance_sc636-2c_firmware | 0 | Affected |
| siemens | scalance_sc642-2c_firmware | 0 | Affected |
Frequently Asked Questions
What is CVE-2021-25667?
CVE-2021-25667 is a high-severity vulnerability affecting siemens ruggedcom_rm1224_firmware. It was published on March 15, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2021-25667?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-25667?
Check the references section for vendor advisories and patches from siemens. Update ruggedcom_rm1224_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-25667?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-25667 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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Browser-based exploitation validates findings with real proof-of-concept.
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