PwnKit, first disclosed 18th November 2021 by Qualys' researchers and effective since May 2009, affects Unix and is tracked as CVE-2021-4034 with a severity score of 7.8. PwnKit is a local privilege escalation vulnerability leading to arbitrary code execution. The vulnerability resides in the PKEXEC command of POLKIT, which leads to a memory corruption flaw when null data is passed to it ( 7 ). The vulnerability will allow escalation to full Root privileges on default installation most of the popular Linux flavors.