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Computer Security Resource Center

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likelihood of occurrence

Abbreviation(s) and Synonym(s):

probability of occurrence

Definition(s):

  A weighted factor based on a subjective analysis of the probability that a given threat is capable of exploiting a given vulnerability or a set of vulnerabilities.
Source(s):
NIST SP 800-30 Rev. 1 under Likelihood of Occurrence from CNSSI 4009 - Adapted
CNSSI 4009-2015 [Superseded] from NIST SP 800-30 Rev. 1

  See likelihood of occurrence.
Source(s):
CNSSI 4009-2015 [Superseded] under probability of occurrence from NISTIR 7298 Rev. 2