Guidance for responders: Investigating and remediating on-premises Exchange Server vulnerabilities

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Posted on Tuesday March 16, 2021 | MSRC alerts

This guidance will help customers address threats taking advantage of the recently disclosed Microsoft Exchange Server on-premises vulnerabilities CVE-2021-26855, CVE-2021-26858, CVE-2021-26857, and CVE-2021-27065. Microsoft will continue to monitor these threats and provide updated tools and investigation guidance to help organizations defend against, identify, and remediate associated attacks.