Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2021-25667


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.


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.8, indicating it requires adjacent network access with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 30 products from siemens, from siemens, from siemens and 27 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2021, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2021-03-15T17:15:21.690

Last Modified

2024-11-21T05:55:15.360

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.8 (HIGH)

CVSSv2 Vector

AV:A/AC:L/Au:N/C:P/I:P/A:P

  • Access Vector: ADJACENT_NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

6.5

Impact Score

6.4

Weaknesses
  • Type: Secondary
    CWE-121
  • Type: Secondary
    CWE-787

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System siemens ruggedcom_rm1224_firmware < 6.4 Yes
Hardware siemens ruggedcom_rm1224 - No
Operating System siemens scalance_m-800_firmware < 6.4 Yes
Hardware siemens scalance_m-800 - No
Operating System siemens scalance_s615_firmware < 6.4 Yes
Hardware siemens scalance_s615 - No
Operating System siemens scalance_x300wg_firmware < 4.1 Yes
Hardware siemens scalance_x300wg - No
Operating System siemens scalance_xm400_firmware < 6.2 Yes
Hardware siemens scalance_xm400 - No
Operating System siemens scalance_xr500_firmware < 6.2 Yes
Hardware siemens scalance_xr500 - No
Operating System siemens scalance_sc622-2c_firmware ≤ 2.0 Yes
Operating System siemens scalance_sc622-2c_firmware < 2.1.3 Yes
Hardware siemens scalance_sc622-2c - No
Operating System siemens scalance_sc632-2c_firmware ≤ 2.0 Yes
Operating System siemens scalance_sc632-2c_firmware < 2.1.3 Yes
Hardware siemens scalance_sc632-2c - No
Operating System siemens scalance_sc636-2c_firmware ≤ 2.0 Yes
Operating System siemens scalance_sc636-2c_firmware < 2.1.3 Yes
Hardware siemens scalance_sc636-2c - No
Operating System siemens scalance_sc642-2c_firmware ≤ 2.0 Yes
Operating System siemens scalance_sc642-2c_firmware < 2.1.3 Yes
Hardware siemens scalance_sc642-2c - No
Operating System siemens scalance_sc646-2c_firmware ≤ 2.0 Yes
Operating System siemens scalance_sc646-2c_firmware < 2.1.3 Yes
Hardware siemens scalance_sc646-2c - No
Operating System siemens scalance_xb-200_firmware < 4.1 Yes
Hardware siemens scalance_xb-200 - No
Operating System siemens scalance_xc-200_firmware < 4.1 Yes
Hardware siemens scalance_xc-200 - No
Operating System siemens scalance_xf-200ba_firmware < 4.1 Yes
Hardware siemens scalance_xf-200ba - No
Operating System siemens scalance_xp-200_firmware < 4.1 Yes
Hardware siemens scalance_xp-200 - No

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For siemens's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.