CVE-2025-24990

Microsoft · Published October 14, 2025

7.8

CVSS v3.1

HIGH

CISA KEV — Federal agencies must patch by deadline

Actively exploited in the wild

Patch availableGet patch

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.

Affected Products

Windows 10 1507 < 10.0.10240.21161
Windows 10 1607 < 10.0.14393.8519
Windows 10 1809 < 10.0.17763.7919
Windows 10 21h2 < 10.0.19044.6456

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H