Microsoft has issued an out-of-band (OOB) non-security update to address an issue caused by the October 2022 Windows security updates that triggers SSL/TLS handshake failures on client and server platforms.
On affected devices, users will see SEC_E_ILLEGAL_MESSAGE errors in applications when connections to servers experience issues.
"We address an issue that might affect some types of Secure Sockets Layer (SSL) and Transport Layer Security (TLS) connections. These connections might have handshake failures," Microsoft explains.
The known issue addressed in today's OOB updates affects multiple Windows releases and editions, including:
- Client: Windows 11, version 22H2; Windows 11, version 21H2; Windows 10, version 21H2; Windows 10, version 21H1; Windows 10, version 20H2; Windows 10 Enterprise LTSC 2019; Windows 10 Enterprise LTSC 2016; Windows 10 Enterprise 2015 LTSB; Windows 8.1; Windows 7 SP1
- Server: Windows Server 2022; Windows Server 2019; Windows Server 2016; Windows Server 2012 R2; Windows Server 2012; Windows Server 2008 R2 SP1
References:
https://softwarekeep.com/blog/how-to-troubleshoot-tls-handshake-issues-updated