Agere Windows Modem Driver Elevation of Privilege Vulnerability
Untrusted pointer dereference in Agere Windows Modem Driver allows an authorized attacker to elevate privileges locally.
MSRC compact vulnerability detail
CVE-2025-24990 · Windows Agere Modem Driver Elevation of Privilege Vulnerability
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. Fax modem hardware dependent on this specific driver will no longer work on Windows. Microsoft recommends removing any existing dependencies on this hardware.
Signals
Agere Windows Modem Driver
Elevation of Privilege
Exploited: Yes
Publicly disclosed: No
Exploitability: Exploitation Detected
CWE
Patch Diff
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Resolved binary override
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Description
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. Fax modem hardware dependent on this specific driver will no longer work on Windows. Microsoft recommends removing any existing dependencies on this hardware.
FAQ / Articles
FAQ
What privileges could be gained by an attacker who successfully exploited the vulnerability? An attacker who successfully exploited this vulnerability could gain administrator privileges.
FAQ
Is the vulnerability only exploitable if the Agere Modem is actively being used? No. All supported versions of Windows can be affected by a successful exploitation of this vulnerability, even if the modem is not actively being used.