Microsoft warns of 8 “critical” security flaws
SAN FRANCISCO (Reuters) – Microsoft Corp. on Tuesday warned
of eight “critical” security flaws in its Windows operating
system and Office software that could allow attackers to take
control of a computer.
Microsoft, whose Windows operating system runs on 90
percent of the world’s computers, issued patches to fix the
problems as part of its monthly security bulletin. It was the
biggest such update since February 2005.
The world’s biggest software maker defines a flaw as
“critical” when the vulnerability could allow a damaging
Internet worm to replicate without the user doing anything to
Six of the critical flaws related to Windows and two
affected Office. Microsoft also issued another two security
warnings it rated at its second-highest level of “important”
for Windows as well as one it gave a severity rating of
It also warned of an “important” flaw in its Microsoft
Exchange software that allows users to send and receive e-mail
along with other forms of communication through computer
The company has been working for more than three years to
improve the security and reliability of its software as more
and more malicious software targets weaknesses in Windows and
other Microsoft software.
The latest patches can be downloaded at