What is the severity of CVE-2021-26412?

CVE-2021-26412 has been rated as critical due to its potential for remote code execution.

How do I fix CVE-2021-26412?

To fix CVE-2021-26412, apply the latest security updates provided by Microsoft for your version of Exchange Server.

What are the affected versions listed under CVE-2021-26412?

CVE-2021-26412 affects Microsoft Exchange Server 2013 CU23, 2016 CU18 and CU19, and 2019 CU7 and CU8.

Can CVE-2021-26412 be exploited remotely?

Yes, CVE-2021-26412 can be exploited remotely without authentication, making it particularly dangerous.

Are there any known exploits for CVE-2021-26412?

Yes, there are known exploits in the wild that target CVE-2021-26412, emphasizing the urgency to apply patches.

Vulnerability/
CVE-2021-26412

critical

9.1

2/3/2021

19/11/2024

CVE-2021-26412: Microsoft Exchange Server Remote Code Execution Vulnerability

First published: Tue Mar 02 2021(Updated: )

Microsoft Exchange Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-26854, CVE-2021-26855, CVE-2021-26857, CVE-2021-26858, CVE-2021-27065, CVE-2021-27078.

Credit: 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_18
Microsoft Exchange Server	=2016-cumulative_update_19
Microsoft Exchange Server	=2019-cumulative_update_7
Microsoft Exchange Server	=2019-cumulative_update_8

Remedy

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26412

Never miss a vulnerability like this again

Reference Links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26412

Frequently Asked Questions

What is the severity of CVE-2021-26412?
CVE-2021-26412 has been rated as critical due to its potential for remote code execution.
How do I fix CVE-2021-26412?
To fix CVE-2021-26412, apply the latest security updates provided by Microsoft for your version of Exchange Server.
What are the affected versions listed under CVE-2021-26412?
CVE-2021-26412 affects Microsoft Exchange Server 2013 CU23, 2016 CU18 and CU19, and 2019 CU7 and CU8.
Can CVE-2021-26412 be exploited remotely?
Yes, CVE-2021-26412 can be exploited remotely without authentication, making it particularly dangerous.
Are there any known exploits for CVE-2021-26412?
Yes, there are known exploits in the wild that target CVE-2021-26412, emphasizing the urgency to apply patches.

agent/author
agent/type
agent/event
agent/description
agent/softwarecombine
agent/first-publish-date
agent/title
agent/remedy
agent/severity
agent/references
collector/nvd-api
source/NVD
agent/software-canonical-lookup
agent/software-canonical-lookup-request
collector/nvd-index
agent/tags
collector/mitre-cve
source/MITRE
agent/last-modified-date
agent/source
vendor/microsoft
canonical/microsoft exchange server
version/microsoft exchange server/2013-cumulative_update_23
version/microsoft exchange server/2016-cumulative_update_18
version/microsoft exchange server/2016-cumulative_update_19
version/microsoft exchange server/2019-cumulative_update_7
version/microsoft exchange server/2019-cumulative_update_8

Company

Resources

Contact

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Frequently Asked Questions

What is the severity of CVE-2021-26412?
CVE-2021-26412 has been rated as critical due to its potential for remote code execution.
How do I fix CVE-2021-26412?
To fix CVE-2021-26412, apply the latest security updates provided by Microsoft for your version of Exchange Server.
What are the affected versions listed under CVE-2021-26412?
CVE-2021-26412 affects Microsoft Exchange Server 2013 CU23, 2016 CU18 and CU19, and 2019 CU7 and CU8.
Can CVE-2021-26412 be exploited remotely?
Yes, CVE-2021-26412 can be exploited remotely without authentication, making it particularly dangerous.
Are there any known exploits for CVE-2021-26412?
Yes, there are known exploits in the wild that target CVE-2021-26412, emphasizing the urgency to apply patches.