Microsoft Warns Outdated Exchange Servers Vulnerable to Threats
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🔒✉️ Microsoft warns outdated Exchange servers are vulnerable to security threats. Microsoft announced that outdated Exchange servers cannot receive new emergency mitigation definitions due to the deprecation of an Office Configuration Service certificate type. The Exchange Emergency Mitigation Service (EEMS), which automatically applies interim mitigations for high-risk security flaws, is unable to function on servers running versions older than March 2023, resulting in error messages. Microsoft emphasized the importance of updating servers to ensure they can check for new EEMS rules and maintain security against potential attacks, particularly following past incidents involving state-sponsored hacking groups exploiting vulnerabilities like ProxyLogon and ProxyShell. Users are urged to keep their systems up to date to safeguard their email workloads.
