Cisco’s Talos intelligence and research group discovered three critical remote code execution (RCE) vulnerabilities in Memcached that exposed major websites including Facebook, Twitter, YouTube, Reddit, to hackers. Top 5 countries with most vulnerable servers are the United States, followed by China, United Kingdom, France and Germany. Only 2,958 servers found vulnerable in February scan had been patched before July scan, while the remaining are still left vulnerable to the remote hack. This ignorance by organisations to apply patches on time is concerning, as these vulnerable installations could be an easy target of ransomware attacks similar to the one that hit MongoDB databases.
Source: https://thehackernews.com/2017/07/memcached-vulnerabilities.html