Since around two days customers reported that download center links for Fixes (SharePoint and others) in KB articles are not working.
Instead of redirecting to the fix the links redirect to the root site of download center.
The affected links have this format: http://www.microsoft.com/download/details.aspx?familyid=…
Links with this format are not affected: https://www.microsoft.com/download/details.aspx?id=…
Workaround
In case that you are affected by the issue when looking for SharePoint fixes, please use the links in my monthly CU blog posts as they are not affected by the issue.