It’s that time again. This month’s crop of updates from Microsoft addresses security problems in the usual suspects, namely Windows, Office, .NET and Internet Explorer. Adobe joins the fun with yet another batch of fixes for Flash, and Google releases another version of Chrome with the latest Flash.

The Microsoft security summary bulletin for November 2015 gets into all the technical details. There are twelve separate bulletins with associated updates. Four of the updates are flagged as Critical. One of the updates affects the Windows 10 web browser Edge. A total of 53 vulnerabilities are addressed.

Flash 19.0.0.245 includes fixes for at least seventeen vulnerabilities. As usual, Internet Explorer in recent versions of Windows will be updated via Windows Update. Chrome gets the new Flash via its internal updater. Anyone still using a web browser with Flash enabled should install the new Flash as soon as possible.

Chrome 46.0.2490.86 includes the latest Flash (see above) and fixes a security issue in its embedded PDF viewer.