Several CGI endpoints are vulnerable to buffer overflows, by authenticated users, because of missing bounds checking on parameters passed through POST requests to the strcpy function on DrayTek Vigor310 devices through 4.3.2.6.
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.0, indicating it requires adjacent network access 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 48 products from draytek, from draytek, from draytek and 45 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2024, 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.
2024-10-03T19:15:04.487
2025-06-11T13:49:57.290
Analyzed
CVSSv3.1: 8.0 (HIGH)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | draytek | vigor2765_firmware | < 4.4.5.3 | Yes |
| Hardware | draytek | vigor2765 | - | No |
| Operating System | draytek | vigor2763_firmware | < 4.4.5.3 | Yes |
| Hardware | draytek | vigor2763 | - | No |
| Operating System | draytek | vigor2135_firmware | < 4.4.5.3 | Yes |
| Hardware | draytek | vigor2135 | - | No |
| Operating System | draytek | vigor166_firmware | < 4.2.7 | Yes |
| Hardware | draytek | vigor166 | - | No |
| Operating System | draytek | vigor3912_firmware | < 4.3.6.1 | Yes |
| Hardware | draytek | vigor3912 | - | No |
| Operating System | draytek | vigor1000b_firmware | < 4.3.2.8 | Yes |
| Operating System | draytek | vigor1000b_firmware | < 4.4.3.1 | Yes |
| Hardware | draytek | vigor1000b | - | No |
| Operating System | draytek | vigor165_firmware | < 4.2.7 | Yes |
| Hardware | draytek | vigor165 | - | No |
| Operating System | draytek | vigor3910_firmware | < 4.3.2.8 | Yes |
| Operating System | draytek | vigor3910_firmware | < 4.4.3.1 | Yes |
| Hardware | draytek | vigor3910 | - | No |
| Operating System | draytek | vigor2962_firmware | < 4.3.2.8 | Yes |
| Operating System | draytek | vigor2962_firmware | < 4.4.3.1 | Yes |
| Hardware | draytek | vigor2962 | - | No |
| Operating System | draytek | vigorlte200_firmware | * | Yes |
| Hardware | draytek | vigorlte200 | - | No |
| Operating System | draytek | vigor2133_firmware | * | Yes |
| Hardware | draytek | vigor2133 | - | No |
| Operating System | draytek | vigor2762_firmware | * | Yes |
| Hardware | draytek | vigor2762 | - | No |
| Operating System | draytek | vigor2832_firmware | * | Yes |
| Hardware | draytek | vigor2832 | - | No |
| Operating System | draytek | vigor2860_firmware | * | Yes |
| Hardware | draytek | vigor2860 | - | No |
| Operating System | draytek | vigor2862_firmware | * | Yes |
| Hardware | draytek | vigor2862 | - | No |
| Operating System | draytek | vigor2925_firmware | * | Yes |
| Hardware | draytek | vigor2925 | - | No |
| Operating System | draytek | vigor2926_firmware | * | Yes |
| Hardware | draytek | vigor2926 | - | No |
| Operating System | draytek | vigor2952_firmware | * | Yes |
| Hardware | draytek | vigor2952 | - | No |
| Operating System | draytek | vigor3220_firmware | * | Yes |
| Hardware | draytek | vigor3220 | - | No |
| Operating System | draytek | vigor2620_firmware | * | Yes |
| Hardware | draytek | vigor2620 | - | No |
| Operating System | draytek | vigor2915_firmware | < 4.4.5.3 | Yes |
| Hardware | draytek | vigor2915 | - | No |
| Operating System | draytek | vigor2866_firmware | < 4.4.5.2 | Yes |
| Hardware | draytek | vigor2866 | - | No |
| Operating System | draytek | vigor2766_firmware | < 4.4.5.3 | Yes |
| Hardware | draytek | vigor2766 | - | No |
| Operating System | draytek | vigor2865_firmware | < 4.4.5.2 | Yes |
| Hardware | draytek | vigor2865 | - | 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 draytek'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.