CVE-2021-45839

CVE-2021-45839 is a medium-severity vulnerability affecting Terramaster F2-210 and F4-210 devices running TOS 4.2.X, allowing an authenticated attacker to retrieve the first administrator's hash and other sensitive system information. The vulnerability has a CVSS score of 6.5, indicating a low attack complexity and high confidentiality impact, as it exposes critical authentication data. While not listed in CISA's KEV catalog, there is a public Metasploit module available demonstrating a remote code execution chain leveraging this vulnerability, despite limited community discussion or media coverage.