Microsoft has released Windows 10 Insider Preview Build 19042.746 (20H2) to Windows insiders in the beta and release preview channels.

Releasing Windows 10 Build 19042.746 (20H2) to Beta and Release Preview Channels

Hello Windows Insiders, today we’re releasing 20H2 Build 19042.746 (KB4598242) to the Beta and Release Preview Channels for those Insiders who are on 20H2. This security update includes quality improvements. Key changes include:

• We fixed a security vulnerability issue with HTTPS-based intranet servers. After installing this update, HTTPS-based intranet servers cannot, by default, use a user proxy to detect updates. Scans using these servers will fail if you have not configured a system proxy on the clients. If you must use a user proxy, you must configure the behavior using the policy “Allow user proxy to be used as a fallback if detection using system proxy fails.” To ensure the highest levels of security, also use Windows Server Update Services (WSUS) Transport Layer Security (TLS) certificate pinning on all devices. This change does not affect customers who are using HTTP WSUS servers. For more information, see  Changes to scans, improved security for Windows devices.
• Addresses a security bypass vulnerability that exists in the way the Printer Remote Procedure Call (RPC) binding handles authentication for the remote Winspool interface. For more information, see  KB4599464.
• Security updates to Windows App Platform and Frameworks, Windows Media, Windows Fundamentals, Windows Cryptography, Windows Virtualization, Windows Peripherals, and Windows Hybrid Storage Services.

For more information about the resolved security vulnerabilities, please refer to the new  Security Update Guide website.

Releasing Windows 10 Build 19042.746 (20H2) to Beta and Release Preview Channels