Product · Microsoft

Microsoft Exchange Server 2016 Cumulative Update 21

16 known vulnerabilities.

All Critical High Medium Low Exploited only Public exploit

8 results · Clear filters · Feed

High 8.8

CVE-2022-23277 Public exploit EPSS 41%

Microsoft Exchange Server Remote Code Execution Vulnerability

Microsoft Exchange Server Remote Code Execution Vulnerability

Microsoft Microsoft Exchange Server 2013 Cumulative Update 23 Microsoft Exchange Server 2019 Cumulative Update 11 Microsoft Exchange Server 2016 Cumulative Update 22

Mar 9, 2022
High 8.8

CVE-2021-42321 Exploited · Ransomware Public exploit EPSS 92%

Microsoft Exchange Server Remote Code Execution Vulnerability

Microsoft Exchange Server Remote Code Execution Vulnerability

Microsoft Microsoft Exchange Server 2019 Cumulative Update 11 Microsoft Exchange Server 2016 Cumulative Update 22 Microsoft Exchange Server 2019 Cumulative Update 10

Nov 10, 2021
KEV Nov 17, 2021
High 8.0

CVE-2021-41348

Microsoft Exchange Server Elevation of Privilege Vulnerability

Microsoft Exchange Server Elevation of Privilege Vulnerability

Microsoft Microsoft Exchange Server 2019 Cumulative Update 11 Microsoft Exchange Server 2016 Cumulative Update 22 Microsoft Exchange Server 2019 Cumulative Update 10

Oct 13, 2021
High 7.5

CVE-2021-34453

Microsoft Exchange Server Denial of Service Vulnerability

Microsoft Exchange Server Denial of Service Vulnerability

Microsoft Microsoft Exchange Server 2019 Cumulative Update 11 Microsoft Exchange Server 2016 Cumulative Update 22 Microsoft Exchange Server 2016 Cumulative Update 21

Oct 13, 2021
High 8.0

CVE-2021-34470 Public exploit

Microsoft Exchange Server Elevation of Privilege Vulnerability

Microsoft Exchange Server Elevation of Privilege Vulnerability

Microsoft Microsoft Exchange Server 2013 Cumulative Update 23 Microsoft Exchange Server 2019 Cumulative Update 10 Microsoft Exchange Server 2016 Cumulative Update 21

Jul 14, 2021
High 8.0

CVE-2021-33768

Microsoft Exchange Server Elevation of Privilege Vulnerability

Microsoft Exchange Server Elevation of Privilege Vulnerability

Microsoft Microsoft Exchange Server 2016 Cumulative Update 21 Microsoft Exchange Server 2019 Cumulative Update 10 Microsoft Exchange Server 2019 Cumulative Update 9

Jul 14, 2021
High 7.6

CVE-2021-31206 EPSS 13%

Microsoft Exchange Server Remote Code Execution Vulnerability

Microsoft Exchange Server Remote Code Execution Vulnerability

Microsoft Microsoft Exchange Server 2013 Cumulative Update 23 Microsoft Exchange Server 2019 Cumulative Update 10 Microsoft Exchange Server 2016 Cumulative Update 21

Jul 14, 2021
High 7.2

CVE-2021-31196 Exploited EPSS 54%

Microsoft Exchange Server Remote Code Execution Vulnerability

Microsoft Exchange Server Remote Code Execution Vulnerability

Microsoft Microsoft Exchange Server 2013 Cumulative Update 23 Microsoft Exchange Server 2016 Cumulative Update 21 Microsoft Exchange Server 2019 Cumulative Update 10

Jul 14, 2021
KEV Aug 21, 2024