CVE-2020-11799

CVE-2020-11799 is a critical privilege escalation vulnerability affecting Z-Cron 5.6 Build 04. An unprivileged attacker can exploit this by modifying a privileged user's scheduled tasks, potentially impacting all system users if a malicious shell is placed in an accessible location. With a CVSS score of 9.8 (Critical), this vulnerability is easily exploitable over the network with no user interaction required, leading to high confidentiality, integrity, and availability impacts. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion, indicating awareness among security researchers.