KB5073723: The Windows core component, WinSqlite3.dll, has been updated.

January 13, 2026—KB5073723 (OS Build 17763.8276)

This security update includes fixes and quality improvements that are part of the following update:

• December 9, 2025—KB5071544 (OS Build 17763.8146)
• December 18, 2025—KB5074975 (OS Build 17763.8148) Out-of-band

The following is a summary of the issues that this update addresses when you install this update. The bold text within the brackets indicates the item or area of the change we are documenting.

• [Windows Deployment Services (WDS)] This update introduces a change in behavior in which WDS will stop supporting hands-free deployment functionality by default. Admins should review guidance and follow instructions provided in Windows Deployment Services (WDS) Hands-Free Deployment Hardening Guidance.
• [Drivers] This update removes the following modem drivers: agrsm64.sys (x64), agrsm.sys (x86), smserl64.sys (x64) and smserial.sys (x86). Modem hardware dependent on these specific drivers will no longer work in Windows.
• [WinSqlite3.dll] Fixed: The Windows core component, WinSqlite3.dll, has been updated. Previously, some security software might have detected this component as vulnerable.