[Full-disclosure] Question about ethics when discovering a security fault in system

Hi

I stumbled upon a security fault (discovered it by mistake) this Sunday 
in a perimeter security device.
The day after I contacted the manufacturer and informed them about it 
and later that evening the acknowledged the problem and they where able 
to reproduce it.

My question is what is good ethics for me to continue with this? Sense I 
discovered it by mistake, and everyone can do the same thing and 
everyone can reproduce it. And it is a perimeter security device 
providing remote access from a large manufacturer. And might be a known 
problem by others than the manufacturer, how ever the product has only 
bean on the market for about 2 months.

What I want a resolution so the device we bought to provide us with 
remote access and security shall work securely and that the company 
shall inform other owner of there products about the problem so they 
wont have the same security breach.

BR Tobbe

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