When you hear of a new CVE and have to patch right bloody now because the sky is falling, where do you go? Start here –> https://portal.msrc.microsoft.com/en-us/security-guidance
Type the CVE number into the search box to pull up the KB that you to patch with. Make sure you know what version of Windows and platform that you are running on, you may not so verify it before downloading anything.
For example. I’m looking for a patch for CVE-2019-1224. I’m running Windows 10 on a 64-bit Intel processor. But I don’t know right off hand what 4-digit version of windows that I have (e.g. 1809, 1903, 1909). Open a Command Prompt, type winver, and press return. A window will pop up with the Version number that you need to search with. In my case it’s 1903.
Now that I have the version I can locate the KB article, like this.