What is the severity of CVE-2018-8159?

CVE-2018-8159 has a severity rating of Important, indicating a significant risk of exploitation.

How do I fix CVE-2018-8159?

To fix CVE-2018-8159, apply the latest security updates provided by Microsoft for the affected versions of Exchange Server.

Which versions of Microsoft Exchange Server are affected by CVE-2018-8159?

CVE-2018-8159 affects Microsoft Exchange Server 2013 Cumulative Update 19 and 20, as well as 2016 Cumulative Update 8 and 9.

What type of vulnerability is CVE-2018-8159?

CVE-2018-8159 is classified as an elevation of privilege vulnerability.

Could CVE-2018-8159 allow attackers to compromise a system?

Yes, exploitation of CVE-2018-8159 could allow attackers to gain elevated permissions on the affected system.

Vulnerability/
CVE-2018-8159

medium

5.8

CWE

9/5/2018

5/8/2024

CVE-2018-8159: XSS

First published: Wed May 09 2018(Updated: )

An elevation of privilege vulnerability exists when Microsoft Exchange Outlook Web Access (OWA) fails to properly handle web requests, aka "Microsoft Exchange Elevation of Privilege Vulnerability." This affects Microsoft Exchange Server.

Credit: secure@microsoft.com

Affected Software	Affected Version	How to fix
Microsoft Exchange Server	=2013-cumulative_update_19
Microsoft Exchange Server	=2013-cumulative_update_20
Microsoft Exchange Server	=2016-cumulative_update_8
Microsoft Exchange Server	=2016-cumulative_update_9

Remedy

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8159

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2018-8159?
CVE-2018-8159 has a severity rating of Important, indicating a significant risk of exploitation.
How do I fix CVE-2018-8159?
To fix CVE-2018-8159, apply the latest security updates provided by Microsoft for the affected versions of Exchange Server.
Which versions of Microsoft Exchange Server are affected by CVE-2018-8159?
CVE-2018-8159 affects Microsoft Exchange Server 2013 Cumulative Update 19 and 20, as well as 2016 Cumulative Update 8 and 9.
What type of vulnerability is CVE-2018-8159?
CVE-2018-8159 is classified as an elevation of privilege vulnerability.
Could CVE-2018-8159 allow attackers to compromise a system?
Yes, exploitation of CVE-2018-8159 could allow attackers to gain elevated permissions on the affected system.

agent/type
agent/softwarecombine
collector/nvd-index
agent/software-canonical-lookup-request
agent/weakness
agent/severity
agent/author
agent/references
agent/remedy
agent/description
collector/mitre-cve
source/MITRE
agent/last-modified-date
agent/tags
agent/first-publish-date
agent/event
agent/source
vendor/microsoft
canonical/microsoft exchange server
version/microsoft exchange server/2013-cumulative_update_19
version/microsoft exchange server/2013-cumulative_update_20
version/microsoft exchange server/2016-cumulative_update_8
version/microsoft exchange server/2016-cumulative_update_9

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