TOTOLINK A830R V4.1.2cu.5182_B20201102, A950RG V4.1.2cu.5161_B20200903, A3000RU V5.9c.5185_B20201128, and A3100R V4.1.2cu.5247_B20211129 were found to contain a buffer overflow vulnerability in cstecgi.cgi
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.3, 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 limited data confidentiality, limited integrity, and limited availability for affected systems. Impacting 8 products from totolink, from totolink, from totolink and 5 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2025, 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.
2025-04-22T18:15:59.037
2025-05-07T16:28:29.897
Analyzed
CVSSv3.1: 7.3 (HIGH)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | totolink | a830r_firmware | 4.1.2cu.5182_b20201102 | Yes |
| Hardware | totolink | a830r | - | No |
| Operating System | totolink | a950rg_firmware | 4.1.2cu.5161_b20200903 | Yes |
| Hardware | totolink | a950rg | - | No |
| Operating System | totolink | a3000ru_firmware | 5.9c.5185_b20201128 | Yes |
| Hardware | totolink | a3000ru | - | No |
| Operating System | totolink | a3100r_firmware | 4.1.2cu.5247_b20211129 | Yes |
| Hardware | totolink | a3100r | - | 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 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.