October 10, 2023—KB5031442 (Monthly Rollup)

REMINDER

• Windows Server 2012 reached end of support (EOS) on October 10, 2023. Extended Security Updates (ESUs) are available for purchase and will continue for three years, renewable on an annual basis, until the final date on October 13, 2026. For more information, see Windows Server End of Support: Key Dates. For information about the procedure to continue receiving security updates, see KB5031043.

We recommend that you upgrade to a later version of Windows Server.

Learn about the ESU programLearn about upgrading Windows Server

• Windows Embedded Standard 8 reached end of support (EOS) on July 11, 2023. Therefore, technical assistance and software updates are no longer provided.

Summary

Learn more about this security-only update, including improvements, any known issues, and how to get the update.

NOTE Verify that you have installed the required updates listed in theHow to get this update section before installing this update.For information about the various types of Windows updates, such as critical, security, driver, service packs, and so on, please see the following article. To view other notes and messages, see the Windows Server 2012 update history home page.

Improvements

This cumulative security update contains improvements that are part of update KB5030278 (released September 12, 2023). This update also makes improvements for the following issues:

• Addresses an issue in which an external bind might fail after Windows updates released on or after May 2023 are installed. This leads to issues with Lightweight Directory Access Protocol (LDAP) queries and authentication.
• Addresses an issue in which the Windows product key installation and Windows activation might fail after installing the September 12, 2023 Windows Server 2012 update.
• This update includes daylight saving time (DST) changes for Greenland. For more information, see the Daylight Saving Time & Time Zone Blog.
  For more information about the resolved security vulnerabilities, please refer to the Deployments | Security Update Guide and the October 2023 Security Updates.

Known issues in this update

We are currently not aware of any issues with this update.

How to get this update

File information

For a list of the files that are provided in this update, download the file information for update KB5031442.

References

Learn about the standard terminology that is used to describe Microsoft software updates.