Wow - this seems really big: It basically means that someone was scanning the Internet for this vulnerability on 23rd March 2014 already. Maybe even before. That's two weeks before the vulnerability was published.
edit: I guess I'll actually have to change all of my passwords.
Just make sure you change them AFTER the services are fixed, or you'll simply be delivering your new ones into the hands of ten thousand scriptkiddies instead of a few uberhaxors.
edit: I guess I'll actually have to change all of my passwords.