Another hefty patch month for Microsoft
For the third straight month, it's a busy "Patch Tuesday" for the software giant.
As part of its monthly security update cycle, Microsoft on Tuesday in the US released a dozen security bulletins. Nine of them are tagged critical, the company's highest severity rating. The alerts give details of 20 flaws in Windows and three in Office, all of which Microsoft has now fixed.
Several of the issues, such as a vulnerability in PowerPoint, have already been publicly reported and are being actively used in cyberattacks. However, the bundle of updates also covers undisclosed bugs that Microsoft discovered itself, the company said.