Microsoft has fastened a bug plaguing a number of variations of Home windows and Home windows Server that is triggering SSL/TLS handshake failures. 

These experiencing the flaw see a SEC_E_ILLEGAL_MESSAGE notification pop up in purposes that strive to connect with servers. 

“We handle a difficulty which may have an effect on some sorts of Safe Sockets Layer (SSL) and Transport Layer Safety (TLS (opens in new tab)) connections. These connections may need handshake failures,” Microsoft mentioned in an announcement (opens in new tab).

A number of variations affected

The affected variations embrace Home windows 11 (opens in new tab) 22H2; Home windows 11 21H2; Home windows 10 21H2; Home windows 10 21H1; Home windows 10 20H2; Home windows 10 Enterprise LTSC 2019; Home windows 10 Enterprise LTSC 2016; Home windows 10 Enterprise 2015 LTSB; Home windows 8.1; and Home windows 7 SP1. 

For servers, affected variations embrace Home windows Server 2022; Home windows Server 2019; Home windows Server 2016; Home windows Server 2012 R2; Home windows Server 2012; and Home windows Server 2008 R2 SP1.

That is an out-of-band replace, that means it gained’t be routinely deployed through Home windows Replace, Home windows Replace for Enterprise, or Home windows Server Replace Providers (WSUS). 

As an alternative, customers taken with selecting the replace up want to move over to the Microsoft Replace Catalog (opens in new tab) and manually add them both into the Microsoft Endpoint Configuration Supervisor, or Home windows Server Replace Providers (WSUS).

Microsoft is not any stranger to out-of-band updates. Final time we had such an replace was in Might 2022, when the corporate fastened an issue that prevented purposes downloaded from the Home windows Retailer from correctly operating on endpoints.

Nevertheless, BleepingComputer (opens in new tab) found that after putting in the patch, the Cluster Service would possibly fail to begin. On this case, this occurs as a result of an replace to the PnP class drivers utilized by the service eliminated a Cluster Community Driver.

The repair continues to be within the works for Home windows 10 2016 LTSB, Home windows Server 2016, and Home windows 10 2015 LTSB.

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