Original fictional statements. No service was tested. No likelihood number is supplied.

Worked pair
Shelf
Weakness: a fix is missing
Reach: the club network can open it
Data: the private budget is stored there
Stated concern from these facts: handle shelf first

Scratch
Weakness: the same kind of missing fix
Reach: only from inside this disposable machine
Data: no private notes
Stated concern from these facts: after shelf
The weakness can match while the concern does not. A missing number is not a probability.

Activity statements
S1: Someone might copy the private budget.
S2: The sign-in page accepts an account without checking a password.
S3: Members would lose the privacy of the budget.

S1 names a possible adverse event.
S2 names a missing check.
S3 names the harm if the budget is exposed.

Check: S1 is a threat.
Do not invent a percentage.