The Apache server on port 80 that host the web interface is vulnerable to a DoS by spamming incomplete HTTP headers, effectively blocking the access to the dashboard.
https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-10280
https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-10280