Java 7 is notoriously susceptible to RCE attacks where an unauthenticated attacker can execute arbitrary commands on your system by tricking a user into visiting a malicious website.
Common threats associated with outdated Java versions like 7u80 include: java 7 update 80 vulnerabilities
A critical vulnerability (CVSS score 9.8) that allowed attackers to completely take over systems via malicious web content. Java 7 vulnerabilities in update 80? - Oracle Forums Java 7 is notoriously susceptible to RCE attacks