Vulnerability Monitor

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CVE-2020-25499


TOTOLINK A3002RU-V2.0.0 B20190814.1034 allows authenticated remote users to modify the system's 'Run Command'. An attacker can use this functionality to execute arbitrary OS commands on the router.


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.8, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 26 products from totolink, from totolink, from totolink and 23 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2020, 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

2020-12-09T21:15:15.477

Last Modified

2024-11-21T05:18:04.130

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.8 (HIGH)

CVSSv2 Vector

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

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: SINGLE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

8.0

Impact Score

10.0

Weaknesses
  • Type: Primary
    CWE-78
    CWE-862

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System totolink a3002r_firmware < 1.1.1-b20200824.0128 Yes
Hardware totolink a3002r - No
Operating System totolink a3002ru-v1_firmware < 3.4.0-b20201030.1754 Yes
Hardware totolink a3002ru-v1 - No
Operating System totolink a3002ru-v2_firmware < 2.1.1-b20200911.1756 Yes
Hardware totolink a3002ru-v2 - No
Operating System totolink a702r-v2_firmware < 1.0.0-b20201028.1743 Yes
Hardware totolink a702r-v2 - No
Operating System totolink a702r-v3_firmware < 1.0.0-b20201103.1713 Yes
Hardware totolink a702r-v3 - No
Operating System totolink n100re-v3_firmware < 3.4.0-b20201030.0926 Yes
Hardware totolink n100re-v3 - No
Operating System totolink n150rt_firmware < 3.4.0-b20201030.1142 Yes
Hardware totolink n150rt - No
Operating System totolink n200re-v3_firmware < 3.4.0-b20201029.1811 Yes
Hardware totolink n200re-v3 - No
Operating System totolink n200re-v4_firmware < 4.0.0-b20200805.1507 Yes
Hardware totolink n200re-v4 - No
Operating System totolink n210re_firmware < 1.0.0-b20201030.2030 Yes
Hardware totolink n210re - No
Operating System totolink n300rh-v3_firmware < 3.2.4-b20201029.1838 Yes
Hardware totolink n300rh-v3 - No
Operating System totolink n300rt_firmware < 3.4.0-b20201026.2033 Yes
Hardware totolink n300rt - No
Operating System totolink n302r_plus_firmware < 3.4.0-b20201028.2224 Yes
Hardware totolink n302r_plus - 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 totolink'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.