Openssl is an implementation of SSL and TLS protocols that is widely used by servers of all types; a fairly high percentage of servers on the internet use it to ensure communication between clients and servers using strong encryption mechanisms.
However, it is an implementation that throughout its years of development has been violated on several occasions, affecting the confidentiality and privacy of user information. Some vulnerabilities that have been made public have been corrected; however, the security patches that should be applied to a vulnerable version of OpenSSL are not applied as quickly, thus leaving vulnerable servers on the internet that we can find in Shodan.
