Microsoft Patches Critical Exchange Server Flaw

Remote code execution vulnerability among 71 bug fixes issued in March Patch Tuesday.

Microsoft today issued security updates for 71 software vulnerabilities, three of which were critical and one that has a known proof-of-concept available in the public domain.
Among the most notable
flaws fixed today by Microsoft
are:
CVE-2022-23277
Microsoft Exchange Server Remote Code Execution Vulnerability
This is a critical bug that could allow an attacker who has been authenticated to the server run malicious code.
CVE-2022-21990
Remote Desktop Client Remote Code Execution Vulnerability
This one — while ranked important and not critical — has the known PoC, so security experts recommend prioritizing it. The vuln allows an attacker who controls a Remote Desktop Server connection to remotely execute code on the victim client RDP machine.
CVE-2022-24508
Windows SMBv3 Client/Server Remote Code Execution Vulnerability
This one requires an attacker to be authenticated, and it affects both client and server Windows 10 systems. ZDIs Dustin Childs recommends prioritizing this patch as well.

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Microsoft Patches Critical Exchange Server Flaw