Microsoft Exchange Server Spoofing Vulnerability
CVE-2023-36039

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:
14 November 2023

Summary

The spoofing vulnerability in Microsoft Exchange Server allows attackers to send emails that appear to come from legitimate sources, potentially leading to unauthorized access and exploitation of sensitive information. By leveraging this vulnerability, malicious actors can impersonate trusted users, circumvent email security measures, and compromise the integrity of communications within an organization.

Affected Version(s)

Microsoft Exchange Server 2016 Cumulative Update 23 x64-based Systems 15.01.0 < 15.01.2507.035

Microsoft Exchange Server 2019 Cumulative Update 12 x64-based Systems 15.02.0 < 15.02.1118.040

Microsoft Exchange Server 2019 Cumulative Update 13 x64-based Systems 15.02.0 < 15.02.1258.028

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

.