CVE-2021-36339

CVE-2021-36339 describes a critical vulnerability in Dell EMC Virtual Appliances, including PowerMax OS, Solutions Enabler, and Unisphere products, where undocumented user accounts exist. A local attacker could exploit this to gain privileged access to the virtual appliance, leading to high impact on confidentiality, integrity, and availability. With a CVSS score of 7.8 (High), this vulnerability is easily exploitable with low attack complexity and no user interaction required. While no public exploits (Metasploit, Nuclei, ExploitDB) or active exploitation have been observed, and community discussion is minimal, the presence of these backdoor accounts poses a significant security risk.