Adobe patched a total of 82 vulnerabilities across a range of products on Tuesday, including 46 critical bugs.
Microsoft fixed 59 vulnerabilities in October's Patch Tuesday, including several critical remote code execution (RCE) flaws.
A researcher has released details of a WhatsApp flaw that could be used to compromise the app and the mobile device the app is running on.
This latest Exim flaw could lead to at least a denial of service crash in the software but also the possibility of remote code execution.
Microsoft has rushed to patch two flaws affecting IE versions 9 to 11, one of which the company says is being exploited in real attacks.
Admins have a spot of patching work on their hands after the company released updates addressing two critical flaws.
An in-depth study of reported bugs has produced a list of the top 25 bug categories in software today - with some old familiar names topping the list.