Many patches don’t go through the usual Windows Update channels. As I explainedearlier today, even the patch that fixes Microsoft’s botched security update KB 3177725 is only available in the Windows Update Catalog.
That fix, KB 3187022, has been available for at least a week, but it isn’t being distributed through Windows Update. The official Windows Update page lists it as “Deployment: Catalog,” which means you can only get it by going to the Microsoft Update Catalog, downloading, and manually installing it.