June is a big month for security patches
Not to be outdone by Adobe's large number of security fixes this month, Microsoft released ten security bulletins on Patch Tuesday that addressed a total of 34 vulnerabilities. A number of different products were affected, including Windows, Office, IE and IIS. Most are rated "Important," which carries a relatively low sense of urgency (three were rated "Critical"), but it's still important to ensure that your systems are updated as soon as possible.
For details about the various security bulletins, ratings and exploitability indexes for each, see this article: