Microsoft issued 13 security bulletins for February's Patch Tuesday, patching a total of 26 vulnerabilities in a massive update Feb. 9.Five of the vulnerabilities are rated "Critical," seven are marked as "Important," and the last one is classified as "Moderate." .
The seventeen-year-old Windows vulnerability that came to light last month will be patched, but the Internet Explorer flaw discovered this week will not.
Further reading: Microsoft Security Bulletin February 2010 –Summary
Breakdown of the some of the more notable issues being addressed here