CVE-2021-20125

CVE-2021-20125 is a critical arbitrary file upload and directory traversal vulnerability affecting Draytek VigorConnect 1.6.0-B3. An unauthenticated attacker can exploit this flaw to upload files to any location on the operating system with root privileges, leading to complete compromise. With a CVSS score of 9.8 (Critical), this vulnerability is easily exploitable over the network with low complexity and no user interaction. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community attention with 10 mentions, indicating potential interest from threat actors.