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  Buffer overflow
Terminology | Dictionary | Explanation

A buffer overflow is an error caused when a program or exploit tries to store too much data into a buffer, than the buffer can handle. Since buffers are created to contain a finite amount of data, the extra information - which has to go somewhere - can overflow into adjacent buffers, corrupting or overwriting the valid data held in them. This can be exploited by hackers to create and execute a backdoor, leading to system access.
 
     





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