Information Disclosure Vulnerability in Microsoft Exchange by Microsoft
CVE-2019-1084

6.5MEDIUM

Key Information:

Vendor

Microsoft
Status
Microsoft Exchange Server
Microsoft Outlook
Microsoft Office
Microsoft Lync
Vendor
CVE Published:
15 July 2019

What is CVE-2019-1084?

An information disclosure vulnerability exists in Microsoft Exchange that permits the creation of entities with non-printable characters in their display names. This flaw can be exploited by an authenticated attacker who may create such entities which then remain hidden during conversations. The security update resolves this issue by implementing validation on display names during their creation in Microsoft Exchange, ensuring that invalid display names are rendered accurately in Microsoft Outlook clients.

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Affected Version(s)

Mail and Calendar = unspecified

Microsoft Exchange Server 2010 Service Pack 3

Microsoft Exchange Server 2013 Cumulative Update 23

References

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

EPSS Score

9% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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