Memcached vulnerability (CVE-2018-1000115) can be exploited beyond leveraging it for a DDoS attack. Remote attackers can steal or modify data from vulnerable servers by issuing a simple debug command. Memfixed tool sends flush or shutdown commands to vulnerable servers to prevent DDoS attacks. Server administrators strongly advised to install the latest version of the application that disables UDP protocol by default to prevent amplification/reflection attacks. The company said its kill-switch has efficiently been tested on live attacking servers and found to be 100% effective.
Source: https://thehackernews.com/2018/03/prevent-memcached-ddos.html