Rapid 7 says that zero days or n days are being exploited in les time

In an article titled Vulnerabilities Being Exploited Faster Than Ever: Analysis it alks about the fact that vulnerabilities are being exploited in less time. Zero days or n days are vulnerabilities that are exploited in 0 to as little as a week.

Vulnerabilities, especially from Microsoft are exploited before the patches can be put out. Some of the vulnerabilities are not exploited quickly, but others are.

Rapid 7 is heavily interviewed in this article. Check it out!