Microsoft today said it will issue nine security updates to patch 13 bugs in Windows, Office and its Web server software next week.

The number of Sept. 14 updates will be more than double the maximum the company has delivered in any other of this year's odd-numbered months. Microsoft traditionally delivers relatively few patches in those months.

Four of the updates were labeled "critical," Microsoft's highest threat ranking in its four-step scoring system. The remaining five were marked "important," the second-highest rating.

The update tally that Microsoft spelled out in its monthly advance notification to customers is "quite substantial," said Wolfgang Kandek, chief security officer of Qualys, considering that September should be an "off" month for patches.

More: http://www.computerworld.com/s/article/9184372/