Microsoft released the January 2023 feature update of Outlook for Microsoft 365 Apps in the Current Channel. ![]() View: Description of the security update for Microsoft Exchange Server 2019, 2016, and 2013: Febru(KB5023038)ĭownload: Security Update for Exchange 2019 CU11 and CU12ĭownload: Security Update for Exchange 2016 CU23ĭownload: Security Update for Exchange 2013 CU23 (support ends on April 11, 2023) View: Exchange Blog: Released: February 2023 Exchange Server Security Updates Transport delivery service mishandles iCAL events.Serialization fails while tried accessing Mailbox Searches in ECP.Data source returns incorrect checkpoint depth.Exchange services in automatic startup mode do not start automatically.Edge Transport service returns an “EseNtOutOfSessions” Exception.Export-UMPrompt fails with InvalidResponseException.The updates also contain the following non-security issues However, the first 3 vulnerabilities are rated as “Exploitation More Likely” so make sure you update as soon as possible! None of the vulnerabilities are currently publicly disclosed or exploited. CVE-2023-21710: Remote Code Execution Vulnerability.CVE-2023-21707: Remote Code Execution Vulnerability.CVE-2023-21706: Remote Code Execution Vulnerability.CVE-2023-21529: Remote Code Execution Vulnerability.The updates fix the following vulnerabilities Security updates have been released for Exchange 2013, Exchange 2016 and Exchange 2019. This update does not apply to msi-based installations of Office 2016. Note: Depending on your installation type, this update can be installed via the Update Now button in Outlook itself or the Microsoft Store. Microsoft 365 Apps, Outlook 2016 Retail, Outlook 2019 Retail, Outlook 2021 Retail.We fixed an issue where references and reply-to headers were removed when replying to an email and the subject was changed.īased on your release channel, you’ll be updated to the following version.Fixed an issue where a dialog box saying “Trying to connect” would appear for multiple minutes while trying to save email attachments to a network share.We fixed an issue that caused attachment size limits to not be evaluated when drag/dropping an attachment into a mail message.We fixed an issue where the time slots of calendars in side-by-side view do not line up correctly. ![]() We fixed an issue that caused users to experience crashes at unpredictable intervals when using some add-ins.We fixed an issue that caused S/MIME users to receive an NDR when selecting the “Send Unencrypted” option.We fixed an issue that caused users to experience the application to close unexpectedly when clicking on some non-HTTP links. ![]() In addition, it contains 1 documented non-security fix related to Outlook Current Version 2301, 5 fixes for Semi-Annual Version 2208, 1 fix for Semi-Annual Version 2202, and 1 fix for Semi-Annual Version 2108. It contains 3 security updates for Word (1), Publisher (1), and Office (1). The February security and rollup update has been made available for all Click-to-Run installations of Outlook 2016, Outlook 2019, Outlook 2021 and Outlook as part of a Microsoft 365 subscription.
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