DrayTek · VigorConnect
CVE-2021-20124
Draytek VigorConnect Path Traversal Vulnerability
What it is
A local file inclusion vulnerability exists in Draytek VigorConnect 1.6.0-B3 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.
CISA: 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.
What to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Deadline for US federal agencies: September 24, 2024
- Added to the CISA list
- September 3, 2024
- Published
- October 13, 2021
- Severity
- High 7.5 CVSS 3.1
- Chance of attacks in the next 30 days (EPSS)
- 96% in the top 0.1% of all known vulnerabilities
- Weakness
- CWE-22
- More details
- NVD · CVE.org · CISA
All references (1)
More exploited flaws from DrayTek
| Added | Vulnerability | Product | Severity | Attack chance |
|---|---|---|---|---|
| Sep 3, 2024 | Path Traversal Vulnerability | VigorConnect | High 7.5 | 90% |
| May 15, 2025 | OS Command Injection | Vigor Routers | Medium 6.9 | 98% |
| Sep 30, 2024 | OS Command Injection | Multiple Vigor Routers | Critical 9.8 | 84% |
| Nov 3, 2021 | Multiple DrayTek Vigor Routers Web Management Page | Multiple Vigor Routers | Critical 9.8 | >99.9% |
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.