ES
Email
Exchange Server
by Microsoft · last CVE Oct 13, 2026
On CISA KEVExploited in the wildRansomware-linked
258
CVEs
20
On KEV
9.8
Max CVSS
3
New 30D
Severity mix
Critical 23High 92Medium 66Low 0
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2024-21410
In wildKEV
9.8
13%
Feb 13
Microsoft Exchange Server Elevation of Privilege Vulnerability
Affected: 2016; 2019; 2019
CVE-2021-34473
RansomwareIn wildKEV
9.1
100%
Jul 14
Microsoft Exchange Server Remote Code Execution Vulnerability
Affected: 2013; 2016; 2016; 2019; 2019
CVE-2021-26855
RansomwareIn wildKEV
9.1
100%
Mar 2
Microsoft Exchange Server Remote Code Execution Vulnerability
Affected: 2013; 2013; 2013; 2016; 2016; 2016; +18 more
CVE-2021-34523
RansomwareIn wildKEV
9.0
100%
Jul 14
Microsoft Exchange Server Elevation of Privilege Vulnerability
Affected: 2013; 2016; 2016; 2019; 2019
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