question

49539302 avatar image
0 Votes"
49539302 asked ·

Nessus Says "Security Updates for Microsoft Exchange Server (CVE-2021-1730) (February 2021)" in Exchange 2016 (CU17) High Vulnerability

Hello Support,

My Exchange Sever 2016 (CU17)
When i run Nessus tool says that "Security Updates for Microsoft Exchange Server (CVE-2021-1730) (February 2021)"

https://www.tenable.com/plugins/nessus/146330

How to fix this issue without any impact

office-exchange-server-itpro
10 |1000 characters needed characters left characters exceeded

Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.

AshokM-8240 avatar image
0 Votes"
AshokM-8240 answered ·

Hi @SathishkumarSingh-0068 ,

Based on my research, Exchange 2016 CU18 has to be installed to address this vulnerability.

https://support.microsoft.com/en-us/topic/cumulative-update-18-for-exchange-server-2016-c1af0ead-3bde-e4db-5f24-9f597050dcbf
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-1730

Upgrading Exchange CU
https://docs.microsoft.com/en-us/exchange/plan-and-deploy/install-cumulative-updates?view=exchserver-2019#install-an-exchange-cu-using-the-setup-wizard

Upgrading Exchange CU in DAG
https://practical365.com/exchange-server/installing-cumulative-updates-on-exchange-server-2016/
http://cloudexchangers.com/exchange-runbooks/

Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.

If the above suggestion helps, please click on "Accept Answer" and upvote it.

· 2 · Share
10 |1000 characters needed characters left characters exceeded

Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.

Hello Ashok,


Can i go ahead with CU19 instead of CU18?
Any Issues on Exchange 2016 CU19?

Reason i have one Exchange. so i am thinking.

Also i Have a clarification

My Current Infra is Running 20GB Exchange2016(CU17)(Single Server)

ADs:-

Primary AD :-

Secondary AD:-

Child Domain:-

CDC01

CDC02

RODC:-

RODC1

RODC2

For CU Upgrade. i need all above servers to restore in Test Lab (Veeam)?
Only Primary AD and Exchange is Enough to restoring in Test Lab for testing CU19 Upgrades?

Please advise

0 Votes 0 ·

Hi,

In CU19, there is an issue with PDF viewing in OWA

71036-image.png




https://docs.microsoft.com/en-us/answers/questions/234489/cu-19-for-exchange-2016-servers.html

I would suggest to install CU18. Also, I would suggest to have the Active directory environment healthy and the replication is fine.

0 Votes 0 ·
image.png (6.1 KiB)
KyleXu-MSFT avatar image
0 Votes"
KyleXu-MSFT answered ·

@SathishkumarSingh-0068

The link that you provided contains the solution:
70829-qa-kyle-09-55-05.png

KB4571787 is the update for Exchange 2019, you need to download from VLSC.
KB4571788 is the update for Exchange 2016, you can download from here.


If the response is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.


· 1 · Share
10 |1000 characters needed characters left characters exceeded

Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.

KB4571788 is the update for Exchange 2016, you can download

Can i upgrade Directly to CU19? for Exchange 2016?

Any customers reviews of Issues in CU19?

Please advise

0 Votes 0 ·