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HomeMicrosoft ExchangeSafety Updates Alternate 2013-2019 (Mar2023) | EighTwOne (821)

Safety Updates Alternate 2013-2019 (Mar2023) | EighTwOne (821)

The Alternate product group launched March updates for Alternate Server 2013, 2016 and 2019. Be suggested that the Alternate crew additionally put out a discover for fastened vulnerability in Outlook (CVE-2023-23397), along with a supporting script to investigate mailboxes for this potential exploit (hyperlink), which is moderately unusual.

The vulnerability addressed in these Safety Updates for Alternate Server is:

The Safety Updates for every supported Alternate Server construct are linked beneath:

Word: As talked about final month, be suggested that Alternate Server 2013 help will finish in April, 2023. This implies: Alternate 2013 will cease to obtain safety updates. Advice is to improve to a newer model, or transfer to Alternate On-line.

Different Points
Other than safety fixes, these SUs additionally repair the next:


  • Safety updates are Cumulative Replace degree particular. You can not apply the replace for Alternate 2019 CU12 to Alternate 2019 CU11. When downloading, the safety replace will carry the identical identify for various Cumulative Updates, and I’d recommend tagging the file identify with the CU degree when archiving it, e.g. Exchange2019-CU12-KBXXXXXX-x64-en.msp.
  • Much like Cumulative Updates, Safety Updates are cumulative and also you solely want to put in the newest SU to your CU.
  • Alternate servers working as a part of hybrid deployment are managed by PowerShell, and thus have to be obtain this patch and ultimately be enabled for payload signing.
  • When you have put in the Alternate Administration Instruments individually for managing your on-premises Alternate Servers, or put in it after removing of the Final Alternate Server for recipient administration, it’s endorsed to use the Safety Replace.

On a ultimate word, as with all patch or replace, I’d suggest to use this in a check setting first, previous to implementing it in manufacturing. Nevertheless, it’s not really useful to attend for normal upkeep cycles when it issues safety updates, and comply with a extra agile strategy; the rankings are a sign of the urgency.



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