Overflow may refer to:

Computing and telecommunications

Integer overflow In computer programming, an integer overflow occurs when an arithmetic operation attempts to create a numeric value that is outside of the range that can be represented with a given number of digits – either higher than the maximum or lower ...

, a condition that occurs when an integer calculation produces a result that is greater than what a given register can store or represent *

Buffer overflow In information security and programming, a buffer overflow, or buffer overrun, is an anomaly whereby a program, while writing data to a buffer, overruns the buffer's boundary and overwrites adjacent memory locations. Buffers are areas of memo ...

, a situation whereby the incoming data size exceeds that which can be accommodated by a buffer. **

Heap overflow A heap overflow, heap overrun, or heap smashing is a type of buffer overflow that occurs in the heap data area. Heap overflows are exploitable in a different manner to that of stack-based overflows. Memory on the heap is dynamically allocated at ...

, a type of buffer overflow that occurs in the heap data area *

Overflow (software) OVERFLOW - the OVERset grid FLOW solver - is a software package for simulating fluid flow around solid bodies using computational fluid dynamics (CFD). It is a compressible 3-D flow solver that solves the time-dependent, Reynolds-averaged, Nav ...

, a NASA-developed computational fluid dynamics program using overset (Chimera) grids * Overflow condition, a situation that occurs when more information is being transmitted than the hardware can handle * Overspill, a proof technique in non-standard analysis, is less commonly called overflow *

Stack overflow In software, a stack overflow occurs if the call stack pointer exceeds the stack bound. The call stack may consist of a limited amount of address space, often determined at the start of the program. The size of the call stack depends on many facto ...

in which a computer program makes too many subroutine calls and its call stack runs out of space

Other

* ''Overflow'' (magazine), a free quarterly in Brooklyn, New York, US * 0verflow, a Japanese video game developer * River overflow, a relatively long and significant increase in the water content of a river, causing a rise in its level *

Sanitary sewer overflow Sanitary sewer overflow (SSO) is a condition in which untreated sewage is discharged from a sanitary sewer into the environment prior to reaching sewage treatment facilities. When caused by rainfall it is also known as wet weather overflow. Cause ...

, a condition whereby untreated sewage is discharged into the environment, escaping wastewater treatment {{disambiguation