PCProtect Endpoint prior to v5.17.470 for Microsoft Windows lacks tamper protection, allowing authenticated attackers with Administrator privileges to modify processes within the application and escalate privileges to SYSTEM via a crafted executable.

PC Protect Antivirus v4.14.31 installs by default to %PROGRAMFILES(X86)%\PCProtect with very weak folder permissions, granting any user full permission "Everyone: (F)" to the contents of the directory and its subfolders. In addition, the program installs a service called SecurityService that runs as LocalSystem. This allows any user to escalate privileges to "NT AUTHORITY\SYSTEM" by substituting the service's binary with a Trojan horse.

PCProtect Anti-Virus v4.8.35 has "Everyone: (F)" permission for %PROGRAMFILES(X86)%\PCProtect, which allows local users to gain privileges by replacing an executable file with a Trojan horse.