Microsoft releases regular monthly security bulletins. One of them addresses a vulnerability rated ‘Important’ The others fix a series of vulnerabilities rated ‘Critical’ The latest bulletins also address a number of bugs rated ‘High-risk’ Vulnerabilities are listed in the latest monthly security bulletin (MS06-066-06-071-0606-06071), and the others are rated ‘Vulnerabilities’ Microsoft patches are published every month to minimise your exposure to malicious code.”]
Source: https://securelist.com/patch-tuesday-a-friendly-reminder/30259/