Latest macOS Big Sur also has SUDO root privilege escalation flaw By 06:00 AM A recently discovered heap-based buffer overflow vulnerability in Linux SUDO also impacts the latest version of Apple macOS Big Sur, with no patch available yet. Last week, BleepingComputer had reported on , a flaw in SUDO which lets local users gain root privileges. Sudo is a Unix program that enables system admins to provide limited root privileges to normal users listed in the sudoers file, while at the same time keeping a log of their activity. This helps limits the rights of standard users on an operating system by preventing them from executing high-risk commands and programs which may compromise the system's security.