LSI (Agere, Lucent) Fax Modem support disabled in Windows 10/11 cumulative update
In October 2025, a cumulative update for Windows 11 and 10 was released. It removed a third-party Lucent (Agere) Modem driver. This was due to an Elevation of Privilege Vulnerability. This driver ships natively with supported Windows operating systems. The driver file ltmdm64.sys (x64) was used for several types of soft modems using the Lucent/Agere […]