This update resolves a newly-discovered, privately reported vulnerability. A
remote code execution vulnerability exists in the Task Scheduler because of
an unchecked buffer.  

If a user is logged on with administrative privileges, an attacker who
successfully exploited this vulnerability could take complete control of an
affected system, including installing programs; viewing, changing, or deleting
data; or creating new accounts with full privileges. However, user interaction
is required to exploit this vulnerability. Users whose accounts are configured
to have fewer privileges on the system would be at less risk than users who
operate with administrative privileges.