A common cause of malfunctioning software. If the amount of data copied into a memory buffer exceeds the size of the buffer, the extra data will overwrite whatever is in the adjacent bytes, and ...

A buffer overflow or overrun is a memory safety issue ... Bounds of a Memory Buffer,” a larger class of buffer handling errors that includes buffer overflows and out-of-bound reads.

Bottom line: The US Cybersecurity and Infrastructure Security Agency is once again reminding IT manufacturers and developers that buffer overflow vulnerabilities must be eradicated from software.