

I was riding my motorcycle today and was gonna park in a parking lot. Nearby there was a 1-lane 1-way road, and I witnessed some car park there even though the parking lot was visibly not full from that road. An hour later it was still parked there, blocking the road. Idiot.
Vulnerabilities are flaws in software that may allow an attacker to gain control of or eavesdrop a system.
They are categorized into low, medium, and high severities based on how easy it is to exploit the vulnerability and how much damage a successful attack utilizing that vulnerability would do.