Microsoft's March 2023 Patch Tuesday Addresses Zero-Days and Flaws, Including Outlook Zero-Day.

Microsoft released updates to fix at least 74 security bugs in its Windows operating systems and software, including two zero-day flaws being actively attacked. One of the flaws is an Outlook vulnerability affecting all versions of Microsoft Outlook from 2013 to the newest, which can be exploited without any user interaction. The other flaw is a "Security Feature Bypass" in Windows SmartScreen. Seven other vulnerabilities Microsoft patched this week earned its most-dire "critical" severity label. Adobe also released eight patches addressing 105 security holes across a variety of products.