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lib/CVSS/v3.pm  view on Meta::CPAN

    $self->metrics->{MPR} //= 'X';
    $self->metrics->{MUI} //= 'X';
    $self->metrics->{MS}  //= 'X';
    $self->metrics->{MC}  //= 'X';
    $self->metrics->{MI}  //= 'X';
    $self->metrics->{MA}  //= 'X';


    # Base Metrics Equations

    # The Base Score formula depends on sub-formulas for Impact Sub-Score (ISS),
    # Impact, and Exploitability, all of which are defined below:

    # ISS = 1 - [ (1 - Confidentiality) × (1 - Integrity) × (1 - Availability) ]

    # Impact =
    #   If Scope is Unchanged   6.42 × ISS
    #   If Scope is Changed     7.52 × (ISS - 0.029) - 3.25 × (ISS - 0.02) ** 15

    # Exploitability =  8.22 × AttackVector × AttackComplexity ×
    #                   PrivilegesRequired × UserInteraction

lib/CVSS/v3.pm  view on Meta::CPAN

        $self->{scores}->{temporal} = $temporal_score;

    }


    if ($self->metric_group_is_set('environmental')) {

        # Environmental Metrics Equations

        # The Environmental Score formula depends on sub-formulas for Modified Impact
        # Sub-Score (MISS), ModifiedImpact, and ModifiedExploitability, all of which
        # are defined below:

        # MISS =  Minimum ( 1 - [
        #   (1 - ConfidentialityRequirement × ModifiedConfidentiality) ×
        #   (1 - IntegrityRequirement × ModifiedIntegrity) ×
        #   (1 - AvailabilityRequirement × ModifiedAvailability)
        # ], 0.915)

        # ModifiedImpact =