An overflow error occurs when a computer program tries to store more data in a designated memory location than it can actually hold.

This can happen when the program is attempting to perform a calculation that results in a number that is too large to be represented with the available memory space.

As a result, the excess data "overflows" into adjacent memory locations, causing unexpected behavior in the program. Overflow errors can lead to a variety of issues, including crashes, data corruption, and security vulnerabilities.

In some cases, an overflow error can even be exploited by malicious actors to execute arbitrary code or gain unauthorized access to a system. To prevent overflow errors, programmers need to carefully manage the amount of data being processed and ensure that the appropriate data types and memory allocations are used.

This involves implementing proper error checking and validation mechanisms to catch potential overflow situations before they occur. In conclusion, overflow errors are a common issue in software development that can have serious consequences if not addressed properly.

By understanding the causes and implications of overflow errors, developers can take proactive measures to mitigate the risks and ensure the stability and security of their software applications.