![]() ![]() The following issues have been resolved in this update: There are no known issues with this release.The script will take some time to run, so we recommend prioritizing user mailboxes that are of higher value to attackers (e.g., executives, senior leadership, admins, etc.). The script will tell you if any users have been targeted by potentially malicious messages and allow you to modify or delete those messages if any are found. Please see the MSRC blog post about this vulnerability for more details.īut if your mailboxes are in Exchange Online or on Exchange Server, after installing the Outlook update, you can use a script we created to see if any of your users have been targeted using the Outlook vulnerability. To address this CVE, you must install the Outlook security update, regardless of where your mail is hosted (e.g., Exchange Online, Exchange Server, some other platform). There is a security update for Microsoft Outlook that is required to address CVE-2023-2337. Awareness: Outlook client update for CVE-2023-23397 released Although we are not aware of any active exploits in the wild, our recommendation is to install these updates immediately to protect your environment. Vulnerabilities addressed in the March 2023 Security Updates were responsibly reported by security partners and found through Microsoft’s internal processes. Read more on how to Install Exchange Cumulative Update. If you are not at these Exchange Server CU versions, please update right now and apply the above patch. Read more on how to Install Exchange Security Update. These Security Updates are available for the following specific versions of Exchange: Microsoft has released Security Updates for vulnerabilities found in: Note: These vulnerabilities affect Microsoft Exchange Server. Due to the critical nature of these vulnerabilities, we recommend that customers apply the updates to affected systems immediately to protect the environment. Microsoft released several Security Updates (SUs) for Microsoft Exchange Server to address vulnerabilities. ![]()
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