CVE-2021-20123
Draytek VigorConnect Path Traversal Vulnerability
DrayTek · VigorConnect
Vulnerability details
Draytek VigorConnect contains a path traversal vulnerability in the DownloadFileServlet endpoint. An unauthenticated attacker could leverage this vulnerability to download arbitrary files from the underlying operating system with root privileges.
Added to CISA KEV: 2024-09-03
Ransomware campaign use: Unknown
CISA due date: 2024-09-24
Defensive guidance from CISA
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
This is the source's required-action field, not an independently validated patch procedure. Refer to the vendor for exact affected versions and fixes.
Source catalog date: 2026-11-06T19:44:45.1797Z · Last retrieved: 2026-11-06 21:02:26 UTC