Product:
Agere Modem driver
Summary
Microsoft is aware of vulnerabilities in the third party Agere Modem driver that ships natively with supported Windows operating systems. This is an announcement of the upcoming removal of ltmdm64.sys driver. The driver has been removed in the October cumulative update, and fax modem hardware dependent on this specific driver will no longer work on Windows.
Details
| Severity | Base Score | CVE |
|---|---|---|
| HIGH | 7.8 | CVE-2025-24052 |
Exploitation
The vulnerability can be exploited locally by an attacker with low privileges who has access to the affected system. By leveraging the vulnerabilities in the Agere Modem driver, an attacker could potentially cause high impacts on availability, confidentiality, and integrity of the system.
Affected Products
- Agere Modem driver: The driver has been removed in the October cumulative update, affecting fax modem hardware that relies on it.
Mitigation
Microsoft recommends removing any existing dependencies on the Agere Modem driver to avoid issues with fax modem hardware that will no longer function after the driver removal.