I found this as it does not really say enough other than running an old kernel in Linux is a problem. Probability they found a lot of old routers out there.
https://www.infosecurity-magazine.com/news/home-routers-are-all-broken-finds/
Working fine here, Uptime 1 days 0 hours 28 minute(s) 22 seconds
VSFTPD
Aug 27 08:34:14 kernel: warning: `vsftpd' uses 32-bit capabilities (legacy support in use)
