There is a stack-based buffer overflow on some Tenda routers (FH1202/F1202/F1200: versions before 1.2.0.20). Crafted POST requests to an unspecified URL result in DoS, interrupting the HTTP service (used to login to the web UI of a router) for 1 to 2 seconds.
This vulnerability carries a LOW severity rating with a CVSS v3.1 score of 3.5, indicating it requires adjacent network access with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts and limited availability for affected systems. Impacting 6 products from tendacn, from tendacn, from tendacn and 3 others, organizations running these solutions should prioritize assessment and patching.
First disclosed in 2017, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.
2017-05-21T22:29:00.210
2026-06-17T01:27:32.930
Modified
CVSSv3.0: 3.5 (LOW)
AV:A/AC:L/Au:S/C:N/I:N/A:P
5.1
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | tendacn | f1200_firmware | ≤ 1.2.0.19 | Yes |
| Hardware | tendacn | f1200 | - | No |
| Operating System | tendacn | fh1202_firmware | ≤ 1.2.0.19 | Yes |
| Hardware | tendacn | fh1202 | - | No |
| Operating System | tendacn | f1202_firmware | ≤ 1.2.0.19 | Yes |
| Hardware | tendacn | f1202 | - | 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.