What is the severity of CVE-2019-0858?

CVE-2019-0858 has a severity rating of important, indicating it poses a moderate risk to systems.

How do I fix CVE-2019-0858?

To fix CVE-2019-0858, apply the latest cumulative update for your version of Microsoft Exchange Server.

What versions of Microsoft Exchange Server are affected by CVE-2019-0858?

CVE-2019-0858 affects Microsoft Exchange Server 2013, 2016, and 2019 on specific cumulative updates.

What causes CVE-2019-0858 vulnerability?

CVE-2019-0858 is caused by improper handling of web requests in Outlook Web Access (OWA) on Microsoft Exchange Server.

Is CVE-2019-0858 a common vulnerability?

CVE-2019-0858 has been noted as a specific high-impact vulnerability that can potentially lead to spoofing attacks.

Vulnerability/
CVE-2019-0858

medium

6.1

CWE

9/4/2019

4/8/2024

CVE-2019-0858: XSS

First published: Tue Apr 09 2019(Updated: )

A spoofing vulnerability exists in Microsoft Exchange Server when Outlook Web Access (OWA) fails to properly handle web requests, aka 'Microsoft Exchange Spoofing Vulnerability'. This CVE ID is unique from CVE-2019-0817.

Credit: secure@microsoft.com

Affected Software	Affected Version	How to fix
Microsoft Exchange Server	=2013-cumulative_update_22
Microsoft Exchange Server	=2016-cumulative_update_11
Microsoft Exchange Server	=2016-cumulative_update_12
Microsoft Exchange Server	=2019
Microsoft Exchange Server	=2019-cumulative_update_1

Remedy

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0858

Never miss a vulnerability like this again

Reference Links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0858

Frequently Asked Questions

What is the severity of CVE-2019-0858?
CVE-2019-0858 has a severity rating of important, indicating it poses a moderate risk to systems.
How do I fix CVE-2019-0858?
To fix CVE-2019-0858, apply the latest cumulative update for your version of Microsoft Exchange Server.
What versions of Microsoft Exchange Server are affected by CVE-2019-0858?
CVE-2019-0858 affects Microsoft Exchange Server 2013, 2016, and 2019 on specific cumulative updates.
What causes CVE-2019-0858 vulnerability?
CVE-2019-0858 is caused by improper handling of web requests in Outlook Web Access (OWA) on Microsoft Exchange Server.
Is CVE-2019-0858 a common vulnerability?
CVE-2019-0858 has been noted as a specific high-impact vulnerability that can potentially lead to spoofing attacks.

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_22
version/microsoft exchange server/2016-cumulative_update_11
version/microsoft exchange server/2016-cumulative_update_12
version/microsoft exchange server/2019
version/microsoft exchange server/2019-cumulative_update_1

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