ACTIVELY EXPLOITED
CVE-2021-20124: Draytek VigorConnect Path Traversal Vulnerability
| Vendor | DrayTek |
|---|---|
| Product | VigorConnect |
| Actively exploited | Yes |
| Added to CISA KEV | 3 Sep 2024 |
| CISA federal deadline | 24 Sep 2024 |
| Weakness (CWE) | CWE-22 |
Required action (CISA's text)
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Description (NVD)
Draytek VigorConnect contains a path traversal vulnerability in the file download functionality of the WebServlet endpoint. An unauthenticated attacker could leverage this vulnerability to download arbitrary files from the underlying operating system with root privileges.
SOURCES
Other DrayTek flaws
- CVE-2024-12987: DrayTek Vigor Routers OS Command Injection Vulnerability
- CVE-2020-15415: DrayTek Multiple Vigor Routers OS Command Injection Vulnerability
- CVE-2021-20123: Draytek VigorConnect Path Traversal Vulnerability
- CVE-2020-8515: Multiple DrayTek Vigor Routers Web Management Page Vulnerability
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.