Microsoft Exchange Server Remote Code Execution Vulnerability
CVE-2021-26412

9.1CRITICAL

Key Information:

Vendor

Microsoft
Status
Microsoft Exchange Server 2013 Cumulative Update 23
Microsoft Exchange Server 2019 Cumulative Update 7
Microsoft Exchange Server 2016 Cumulative Update 18
Microsoft Exchange Server 2016 Cumulative Update 19
Vendor
CVE Published:
3 March 2021

What is CVE-2021-26412?

Microsoft Exchange Server Remote Code Execution Vulnerability

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Deploy the Patch

Affected Version(s)

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

Microsoft Exchange Server 2016 Cumulative Update 18 x64-based Systems 15.01.0

Microsoft Exchange Server 2016 Cumulative Update 19 x64-based Systems 15.01.0

References

https://portal.msrc.microsoft.com/en-US/security-guidance...
x_refsource_MISC

EPSS Score

20% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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