CVE-2021-3187

CVE-2021-3187 is a high-severity privilege escalation vulnerability affecting BeyondTrust Privilege Management for Mac versions prior to 5.7, specifically on macOS versions before 10.15.5 or Security Update 2020-003. An authenticated, unprivileged user can exploit this by running a malicious script during installation, which executes with root privileges from a temporary directory, leading to complete compromise of confidentiality, integrity, and availability. The CVSS score is 8.8 (High), indicating a low attack complexity and no user interaction required. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage for this vulnerability.