#LPE — Local Privilege Escalation. A class of vulnerabilities that need a local user account on the target machine to reach higher levels of privilege, up to superuser/root

#RCE — Remote Code Execution. A class of vulnerabilities that can be exploited over unprivileged network connections, giving the attacker privileged access to the target machine.

#CopyFail, #DirtyFrag are LPEs that affect Linux systems. LPEs are typically harder to exploit than RCEs.

Hope this helps to avoid Clickbait.