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msrcMicrosoft Security Response CenterMSRC:9DA5AC102EA6224E027868594A8ED7B8
HistoryMar 16, 2021 - 7:00 a.m.

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

2021-03-1607:00:00
Microsoft Security Response Center
link
42

0.975 High

EPSS

Percentile

100.0%

JSON

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, which are being exploited. We strongly urge customers to immediately update systems. Failing to address these vulnerabilities can result in compromise of your on-premises Exchange Server and, potentially, other parts of your internal network.

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0.975 High

EPSS

Percentile

100.0%

JSON
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