2019年2月12日微软官网已经发布了Exchange 2010/2013/2016/2019各个版本的更新补丁,建议各个Exchange管理员更加需求进行下载更新,具体可以参考:https://docs.microsoft.com/zh-cn/Exchange/new-features/build-numbers-and-release-dates?view=exchserver-2019
1、Exchange 2010 SP3 Rollup26下载地址
该补丁主要修复了Exchange Web Services Push Notifications can be used to gain unauthorized access漏洞
https://www.microsoft.com/en-us/download/details.aspx?id=57824

2、Exchange 2013 CU22下载地址

https://www.microsoft.com/en-us/download/details.aspx?id=57826

3、Exchange 2016 CU12下载地址
https://www.microsoft.com/en-us/download/details.aspx?id=57827

4、Exchange 2019 CU1下载地址
该补丁目前下载方式只能通过微软批量许可中心进行下载。微软批量许可中心登录地址为:https://www.microsoft.com/Licensing/servicecenter/default.aspx