Description
Memcached is an open source, high-performance, distributed memory object caching system
Memcached is designed to be accessed by trusted clients inside trusted environments. It's not recommended to have Memcached service publicly accessible.
Remediation
It's recommended to restrict access to this service on production systems
References
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WordPress 5.7.x Multiple Vulnerabilities (5.7 - 5.7.2)
Rails application running in development mode
Oracle E-Business Suite Frame Injection (CVE-2017-3528)
Squid Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2019-12528)