Command Injection in Tenda G0 routers with firmware versions v15.11.0.6(9039)_CN and v15.11.0.5(5876)_CN , and Tenda G1 and G3 routers with firmware versions v15.11.0.17(9502)_CN or v15.11.0.16(9024)_CN allows remote attackers to execute arbitrary OS commands via a crafted action/setDebugCfg request. This occurs because the "formSetDebugCfg" function executes glibc's system function with untrusted input.
This vulnerability carries a CRITICAL severity rating with a CVSS v3.1 score of 9.8, indicating it can be exploited remotely over the network 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 6 products from tendacn, from tendacn, from tendacn and 3 others, organizations running these solutions should prioritize assessment and patching.
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.
2021-04-16T00:15:12.007
2026-06-17T03:45:20.533
Modified
CVSSv3.1: 9.8 (CRITICAL)
AV:N/AC:L/Au:N/C:C/I:C/A:C
10.0
10.0
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | tendacn | g0_firmware | 15.11.0.5\(5876\)_cn | Yes |
| Operating System | tendacn | g0_firmware | 15.11.0.6\(9039\)_cn | Yes |
| Hardware | tendacn | g0 | - | No |
| Operating System | tendacn | g1_firmware | 15.11.0.16\(9024\)_cn | Yes |
| Operating System | tendacn | g1_firmware | 15.11.0.17\(9502\)_cn | Yes |
| Hardware | tendacn | g1 | - | No |
| Operating System | tendacn | g3_firmware | 15.11.0.16\(9024\)_cn | Yes |
| Operating System | tendacn | g3_firmware | 15.11.0.17\(9502\)_cn | Yes |
| Hardware | tendacn | g3 | - | No |
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 tendacn'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.