The latest Windows and Exchange Server update is causing domain controllers to crash. The problems occur on Windows Server 2016, Windows Server 2022, Exchange Server 2019 and Exchange Server 2016.
Several Windows administrators say they are experiencing outages on updated domain controllers. The March 2024 Windows Server update is said to be causing crashes and system reboots. BleepingComputer reports on these problems.
The problems would be caused by the extreme memory consumption of the Local Security Authority Subsystem Service (LSASS), which deals with various security issues, such as user logins.
Exchange Server
Updates to Exchange Server from 2019 and 2016 are causing the same outages. Microsoft reportedly advised administrators via personal message to uninstall the latest update. However, this workaround does not appear to be successful with all administrators. “I uninstalled it and still have the problems…,” one user reported in response on the update announcement page.
Microsoft is still working on a patch to fix the problem. Administrators can then install the important security update to protect against vulnerabilities. No evidence was found that these vulnerabilities were exploited in the wild.
In February, installing the security update was more urgent because a critical vulnerability was already being exploited. Hackers exploited the vulnerability to steal login credentials and log into servers. More than 28,500 vulnerable servers were identified.
Also read: 28,500 Microsoft Exchange servers vulnerable
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