Microsoft released 77 updates, 20 of which were classified as critical, in this months patch Tuesday announcement.

The updates included fixes for Microsoft Windows, Office, IE, Edge resolving a total of 74 unique CVEs this month including one actively exploited zero day flaw in Internet Explorer, according to its February Patch Tuesday release.

The zero day  allows an attacker to read the contents of files on disk and can as the attacker can persuade a user to open a malicious website to exploit the vulnerability.

The upgrade also addressed a privilege escalation proof of concept for Microsoft Exchange Server would effectively allow an attacker to elevate their privilege level to Domain Admin or grant the attacker access to other users inboxes.

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