“Patch Tuesday” is an unofficial term used to refer to the second Tuesday of each month, when Microsoft, Adobe, Oracle and others regularly release software patches for their software products. Critical security updates are occasionally released outside of the normal Patch Tuesday cycle, but these are known as “Out-of-band” releases. Security updates for April 9th 2024 – critical bypass of ‘smartscreen’ protection mechanism among 149 vulnerabilities this month.

This article covers recent vulnerabilities found to be actively exploited. They are categorised based not only on the category of exploitation, but their impact, and versions affected. This article also informs on any official fix and remediation guidance for the listed vulnerabilities.