The possible values of exploitation activity of the
vulnerability in the wild.
Values:
EXPLOITATION_ACTIVITY_UNSPECIFIED (0):
Invalid or empty value.
WIDE (1):
Exploitation has been reported or confirmed
to widely occur.
CONFIRMED (2):
Limited reported or confirmed exploitation
activities.
AVAILABLE (3):
Exploit is publicly available.
ANTICIPATED (4):
No known exploitation activity, but has a
high potential for exploitation.
NO_KNOWN (5):
No known exploitation activity.