Scheduled maintenance:
Some features related to account registration and licensing may be temporarily unavailable from Friday (May 8) at 1 PM to Sunday (May 10) at 5 PM (PST).
OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to remote denial-of-service when receiving malformed IPv6 packet.
https://nvd.nist.gov/vuln/detail/CVE-2017-7508