The massive ever Oct 13 security updates released by Microsoft actually includes 5 marked critical or important in Windows 7 category.
They were the first set of patches for Windows 7’s final build, which has been running on a lot of machines since it was released in August. Even though the number of patches was significantly less than all previous versions, it’s still worth noting them.
MS09-054 – Cumulative Security Update for IE8 (974455)
MS09-055 – Cumulative Security Update of ActiveX Kill Bits (973525)
MS09-061 – Vulnerabilities in the Microsoft .NET Common Language Runtime Could Allow Remote Code Execution (974378)
MS09-056 – Vulnerabilities in Windows CryptoAPI Could Allow Spoofing (974571)
MS09-059 – Vulnerability in Local Security Authority Subsystem Service Could Allow Denial of Service (975467)
And here is the matrix table in Windows 7 category, click to view larger image.
So if you are on RTM edition, make sure you update your 7 to keep your computer system up-to-date.