If you look at the public release column you'll see the following date: 2014-10-...

MertsA on Sept 25, 2014 | parent | context | favorite | on: AWS issues unavoidable reboot schedules with short...

If you look at the public release column you'll see the following date: 2014-10-01 12:00. I'm not sure when the vulnerability was added to the list or what timezone that is referring to but it looks like we'll find out what it is in a couple days.