Multiple vulnerabilities were recently identified in Microsoft Exchange Server. These vulnerabilities are being exploited in the wild and some hackers public proof-of-concept (PoC) exploits for the security bugs. It is also reported that multiple hacking groups are actively exploiting the vulnerabilities to deploy ransomware.
Microsoft released a one-click Exchange On-premises Mitigation Tool (EOMT) tool to simple fix these vulnerabilities. Organisation should apply the fix to the affected Exchange Server immediately.
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