NOP sled

noun

A series of identical values in memory that instruct the CPU to take no action and proceed to the next instruction, used in shellcode etc. to increase the chances of any random instruction access executing the sequence that follows.

Similar
NOP slide
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Meanings

nounNOP sled (plural NOP sleds)

plural NOP sleds

  1. computingA series of identical values in memory that instruct the CPU to take no action and proceed to the next instruction, used in shellcode etc. to increase the chances of any random instruction access executing the sequence that follows.

    Synonyms: NOP slide

Synonyms & antonyms

nounA series of identical values in memory that instruct the CPU to take no action and proceed to the next instruction, used in shellcode etc. to increase the chances of any random instruction access executing the sequence that follows.

Similar
NOP slide
Also see
nop slide

Origin

See nop (“no operation”).

Full word history & related roots →
Cite this entry
APA

NOP sled. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/NOP%20sled

MLA

“NOP sled.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/NOP%20sled. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “NOP sled,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/NOP%20sled.

Source: NOP sled on Wiktionary, CC BY-SA 4.0.