Overview
DrayTek Vigor3900, Vigor2960, and Vigor300B devices contain an OS command injection vulnerability in cgi-bin/mainfunction.cgi/cvmcfgupload that allows for remote code execution via shell metacharacters in a filename when the text/x-python-script content type is used.
https://www.draytek.com/about/security-advisory/vigor3900-/-vigor2960-/-vigor300b-remote-code-injection/execution-vulnerability-(cve-2020-14472) ; https://nvd.nist.gov/vuln/detail/CVE-2020-15415
Key Details
| Property | Value |
|---|---|
| CVE ID | CVE-2020-15415 |
| Vendor / Product | DrayTek — Multiple Vigor Routers |
| NVD Published | 2020-06-30 |
| NVD Last Modified | 2025-11-07 |
| CVSS 3.1 Score | 9.8 |
| CVSS 3.1 Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| Severity | CRITICAL |
| CWE | CWE-78 |
| CISA KEV Added | 2024-09-30 |
| CISA KEV Deadline | 2024-10-21 |
| Known Ransomware Use | No |
CVSS 3.1 Breakdown
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Required Action
CISA BOD 22-01 Deadline: 2024-10-21.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Timeline
| Date | Event |
|---|---|
| 2024-09-30 | Added to CISA Known Exploited Vulnerabilities catalog |
| 2024-10-21 | CISA BOD 22-01 remediation deadline |
References
| Resource | Type |
|---|---|
| NVD — CVE-2020-15415 | Vulnerability Database |
| CISA KEV Catalog Entry | US Government |