What is the severity of CVE-2021-28483?

CVE-2021-28483 is classified as a critical remote code execution vulnerability.

How do I fix CVE-2021-28483?

To mitigate CVE-2021-28483, apply the latest cumulative updates provided by Microsoft for affected versions of Exchange Server.

What versions of Microsoft Exchange Server are affected by CVE-2021-28483?

CVE-2021-28483 affects Microsoft Exchange Server versions 2013, 2016, and 2019, specifically certain cumulative updates.

What are the potential impacts of exploiting CVE-2021-28483?

Exploitation of CVE-2021-28483 can allow an attacker to execute arbitrary code on the affected Exchange Server.

Is there a workaround for CVE-2021-28483 before patching?

It is recommended to apply the patch as the most effective solution, but implementing strict firewall rules may help reduce exposure temporarily.

Vulnerability/
CVE-2021-28483

critical

13/4/2021

3/8/2024

CVE-2021-28483: Microsoft Exchange Server Remote Code Execution Vulnerability

First published: Tue Apr 13 2021(Updated: )

Microsoft Exchange Server Remote Code Execution Vulnerability

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

Affected Software	Affected Version	How to fix
	=2013-cumulative_update_23
	=2016-cumulative_update_19
	=2016-cumulative_update_20
	=2019-cumulative_update_8
	=2019-cumulative_update_9
Microsoft Exchange Server	=2013-cumulative_update_23
Microsoft Exchange Server	=2016-cumulative_update_19
Microsoft Exchange Server	=2016-cumulative_update_20
Microsoft Exchange Server	=2019-cumulative_update_8
Microsoft Exchange Server	=2019-cumulative_update_9

Remedy

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-28483

Never miss a vulnerability like this again

Reference Links

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

What is the severity of CVE-2021-28483?
CVE-2021-28483 is classified as a critical remote code execution vulnerability.
How do I fix CVE-2021-28483?
To mitigate CVE-2021-28483, apply the latest cumulative updates provided by Microsoft for affected versions of Exchange Server.
What versions of Microsoft Exchange Server are affected by CVE-2021-28483?
CVE-2021-28483 affects Microsoft Exchange Server versions 2013, 2016, and 2019, specifically certain cumulative updates.
What are the potential impacts of exploiting CVE-2021-28483?
Exploitation of CVE-2021-28483 can allow an attacker to execute arbitrary code on the affected Exchange Server.
Is there a workaround for CVE-2021-28483 before patching?
It is recommended to apply the patch as the most effective solution, but implementing strict firewall rules may help reduce exposure temporarily.

agent/type
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collector/nvd-api
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agent/software-canonical-lookup-request
collector/nvd-index
collector/zdnet-article
source/ZDNet
alias/CVE-2024-21410
alias/CVE-2021-28480
alias/CVE-2021-28481
alias/CVE-2021-28482
alias/CVE-2021-28483
agent/severity
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zeroday/true
agent/news-ai
collector/mitre-cve
source/MITRE
agent/last-modified-date
agent/tags
agent/trending
agent/source
vendor/microsoft
canonical/microsoft exchange server
version/microsoft exchange server/2013-cumulative_update_23
version/microsoft exchange server/2016-cumulative_update_19
version/microsoft exchange server/2016-cumulative_update_20
version/microsoft exchange server/2019-cumulative_update_8
version/microsoft exchange server/2019-cumulative_update_9

Frequently Asked Questions

What is the severity of CVE-2021-28483?
CVE-2021-28483 is classified as a critical remote code execution vulnerability.
How do I fix CVE-2021-28483?
To mitigate CVE-2021-28483, apply the latest cumulative updates provided by Microsoft for affected versions of Exchange Server.
What versions of Microsoft Exchange Server are affected by CVE-2021-28483?
CVE-2021-28483 affects Microsoft Exchange Server versions 2013, 2016, and 2019, specifically certain cumulative updates.
What are the potential impacts of exploiting CVE-2021-28483?
Exploitation of CVE-2021-28483 can allow an attacker to execute arbitrary code on the affected Exchange Server.
Is there a workaround for CVE-2021-28483 before patching?
It is recommended to apply the patch as the most effective solution, but implementing strict firewall rules may help reduce exposure temporarily.

CVE-2021-28483: Microsoft Exchange Server Remote Code Execution Vulnerability

Remedy

Never miss a vulnerability like this again

Reference Links

Peer vulnerabilities

Frequently Asked Questions

What is the severity of CVE-2021-28483?

How do I fix CVE-2021-28483?

What versions of Microsoft Exchange Server are affected by CVE-2021-28483?

What are the potential impacts of exploiting CVE-2021-28483?

Is there a workaround for CVE-2021-28483 before patching?

Company

Resources

Contact

Frequently Asked Questions

What is the severity of CVE-2021-28483?

How do I fix CVE-2021-28483?

What versions of Microsoft Exchange Server are affected by CVE-2021-28483?

What are the potential impacts of exploiting CVE-2021-28483?

Is there a workaround for CVE-2021-28483 before patching?