Microsoft Exchange Server Spoofing Vulnerability
CVE-2023-36757

8HIGH

Key Information:

Vendor
Microsoft
Status
Microsoft Exchange Server 2016 Cumulative Update 23
Microsoft Exchange Server 2019 Cumulative Update 12
Microsoft Exchange Server 2019 Cumulative Update 13
Vendor
CVE Published:
12 September 2023

Summary

A spoofing vulnerability exists in Microsoft Exchange Server. This flaw allows an attacker to impersonate another user, potentially leading to unauthorized access to email accounts and sensitive information. Organizations that rely on Microsoft Exchange Server for their communications should prioritize implementing security measures to mitigate the risks associated with this vulnerability. For more information and remediation guidance, refer to the official advisory from Microsoft.

Affected Version(s)

Microsoft Exchange Server 2016 Cumulative Update 23 x64-based Systems 15.01.0 < 15.01.2507.032

Microsoft Exchange Server 2019 Cumulative Update 12 x64-based Systems 15.02.0 < 15.02.1118.037

Microsoft Exchange Server 2019 Cumulative Update 13 x64-based Systems 15.02.0 < 15.02.1258.025

References

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

EPSS Score

19% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.