What is CVE-2021-31196?

CVE-2021-31196 is a remote code execution vulnerability in Microsoft Exchange Server.

What is the severity of CVE-2021-31196?

The severity of CVE-2021-31196 is high with a severity value of 7.2.

Which versions of Microsoft Exchange Server are affected by CVE-2021-31196?

Microsoft Exchange Server 2013 Cumulative Update 23, 2016 Cumulative Update 20 and 21, and 2019 Cumulative Update 9 and 10 are affected by CVE-2021-31196.

How can I fix the CVE-2021-31196 vulnerability?

To fix the CVE-2021-31196 vulnerability, apply the latest security updates provided by Microsoft for the affected versions of Microsoft Exchange Server.

Where can I find more information about CVE-2021-31196?

You can find more information about CVE-2021-31196 in the Microsoft Security Guidance Advisory for CVE-2021-31196.

Vulnerability/
CVE-2021-31196

Exploited

high

7.2

14/7/2021

22/8/2024

CVE-2021-31196: Microsoft Exchange Server Information Disclosure Vulnerability

First published: Wed Jul 14 2021(Updated: )

Microsoft Exchange Server contains an information disclosure vulnerability that allows for remote code execution.

Credit: secure@microsoft.com secure@microsoft.com secure@microsoft.com

Affected Software	Affected Version	How to fix
Microsoft Exchange Server	=2013-cumulative_update_23
Microsoft Exchange Server	=2016-cumulative_update_20
Microsoft Exchange Server	=2016-cumulative_update_21
Microsoft Exchange Server	=2019-cumulative_update_10
Microsoft Exchange Server	=2019-cumulative_update_9
Microsoft Exchange Server

Remedy

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31196

Remedy

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

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Reference Links

Frequently Asked Questions

What is CVE-2021-31196?
CVE-2021-31196 is a remote code execution vulnerability in Microsoft Exchange Server.
What is the severity of CVE-2021-31196?
The severity of CVE-2021-31196 is high with a severity value of 7.2.
Which versions of Microsoft Exchange Server are affected by CVE-2021-31196?
Microsoft Exchange Server 2013 Cumulative Update 23, 2016 Cumulative Update 20 and 21, and 2019 Cumulative Update 9 and 10 are affected by CVE-2021-31196.
How can I fix the CVE-2021-31196 vulnerability?
To fix the CVE-2021-31196 vulnerability, apply the latest security updates provided by Microsoft for the affected versions of Microsoft Exchange Server.
Where can I find more information about CVE-2021-31196?
You can find more information about CVE-2021-31196 in the Microsoft Security Guidance Advisory for CVE-2021-31196.

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