Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2022-21855

9CRITICAL

Key Information:

Vendor
Microsoft
Status
Microsoft Exchange Server 2013 Cumulative Update 23
Microsoft Exchange Server 2016 Cumulative Update 21
Microsoft Exchange Server 2019 Cumulative Update 10
Microsoft Exchange Server 2016 Cumulative Update 22
Vendor
CVE Published:
11 January 2022

Summary

Microsoft Exchange Server Remote Code Execution Vulnerability

Affected Version(s)

Microsoft Exchange Server 2013 Cumulative Update 23 x64-based Systems 15.00.0 < 15.00.1497.028

Microsoft Exchange Server 2016 Cumulative Update 21 x64-based Systems 15.01.0 < 15.01.2308.021

Microsoft Exchange Server 2016 Cumulative Update 22 x64-based Systems 15.0.0 < 15.01.2375.018

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

EPSS Score

0% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
9
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Collectors

NVD DatabaseMitre Database
.