VU#158530: PCTCore64.sys Windows kernel driver contains missing access control vulnerability (opens in new tab)

Overview The PCTCore64.sys Windows kernel driver from PC Tools Internet Security exposes its \\.\PCTCoreDriver device interface with no access control, allowing any user-mode process to interact with the driver and invoke privileged IOCTL (I/O Control) commands. In a Bring Your Own Vulnerable Driver (BYOVD) scenario, a local attacker with the ability to load a Windows driver can exploit the exposed interface to perform sensitive low-level operations on the target device. Description PCTCore64...