This vulnerability allows local attackers to escalate privileges on affected installations of Foxit PhantomPDF 10.0.0.35798. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of the configuration files used by the Foxit PhantomPDF Update Service. The issue results from incorrect permissions set on a resource used by the service. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of SYSTEM. Was ZDI-CAN-11308.
https://www.zerodayinitiative.com/advisories/ZDI-20-1232/
https://www.foxitsoftware.com/support/security-bulletins.php