# Meltdown and Spectre Kernel and arbitrary exploit - ManageEngine Endpoint Central

## Understanding Meltdown and Spectre

### What is the kernel?

The kernel is the central component in an operating system that facilitates the basic operations of a computer as well as all its hardware. The kernel manages memory, processes, tasks, and disks, meaning it can access anything within the operating system.

### What is an arbitrary address?

An arbitrary address refers to the memory on a local system. If a native application (EXE) is downloaded and executed on a computer, it can read anything on that system. With Java, separate memory allocations are made, so native applications can only read memory from the system that is allocated for it.