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CRITICAL · 9.0

CVE-2022-21855

Microsoft Exchange Server Remote Code Execution Vulnerability

Vulnerability Description

Microsoft Exchange Server Remote Code Execution Vulnerability

CVSS Score

9.0

CRITICAL

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
MicrosoftExchange Server2013

References

FAQ

What is CVE-2022-21855?

CVE-2022-21855 is a vulnerability with a CVSS score of 9.0 (CRITICAL). Microsoft Exchange Server Remote Code Execution Vulnerability

How severe is CVE-2022-21855?

CVE-2022-21855 has been rated CRITICAL with a CVSS base score of 9.0/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2022-21855?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Exchange Server.