Release Date:

10/17/2022

Version:

Out-of-band update

Summary

This update includes improvements for the following:

  • It addresses an issue that might affect some types of Secure Sockets Layer (SSL) and Transport Layer Security (TLS) connections. These connections might have handshake failures. For developers, the affected connections are likely to receive one or more records followed by a partial record with a size of less than 5 bytes within a single input buffer. If the connection fails, your app will receive the error, “SEC_E_ILLEGAL_MESSAGE”. 

Known issues in this update

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

How to get this update

Get the update

Release Channel

Available

Next Step

Windows Update and Microsoft Update

No

See the other options below.

Microsoft Update Catalog

Yes

To get the standalone package for this update, go to the Microsoft Update Catalog website.

Windows Server Update Services (WSUS) and Microsoft Endpoint Configuration Manager

No

You can manually import these updates into Windows Server Update Services (WSUS) or Microsoft Endpoint Configuration Manager. For WSUS instructions, see WSUS and the Catalog Site. For Configuration Manger instructions, see Import updates from the Microsoft Update Catalog.

Prerequisites

To install Windows 8.1 or Windows Server 2012 R2 updates, we recommend that you have installed the latest SSU update for Windows 8.1 or Windows Server 2012 R2. For more information, see ADV990001 | Latest Servicing Stack Updates.

File information

For a list of the files that are provided in this update, download the file information for update KB5020447.

References

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

Need more help?

Expand your skills
Explore Training
Get new features first
Join Microsoft Insiders

Was this information helpful?

What affected your experience?

Thank you for your feedback!

×