Microsoft released security patches Tuesday for 55 vulnerabilities across the company’s products. 15 of the fixes are rated as critical and they affect Windows, Microsoft Office, Microsoft Edge, Internet Explorer, and the malware protection engine used in most of Microsoft’s anti-malware products. System administrators should prioritize the Microsoft Office patches because they address two vulnerabilities that attackers have exploited in targeted attacks over the past two months. One of the patched IE flaws is already exploited by attackers, while one patched in Edge has been publicly disclosed.”]