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.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Microsoft Windows | — | 2025-10 Cumulative Update for Microsoft Windows Server 2025, version 24H2 (KB5066835)2025-10 Cumulative Update for Microsoft Windows 11, version 24H2 (KB5066835)2025-10 Cumulative Update for Microsoft Windows 11, version 25H2 (KB5066835)2025-10 Cumulative Update for Microsoft Windows Server 2012 R2 (KB5066873)2025-10 Cumulative Update for Microsoft Windows Server 2022, version 21H2 (KB5066782)2025-10 Cumulative Update for Microsoft Windows 10, version 1607 (KB5066836)2025-10 Cumulative Update for Microsoft Windows Server 2016, version 1607 (KB5066836)2025-10 Cumulative Update for Microsoft Windows 11, version 23H2 (KB5066793)2025-10 Cumulative Update for Microsoft Windows Server 2022, version 23H2 (KB5066780)2025-10 Cumulative Update for Microsoft Windows 10, version 21H2 (KB5066791)2025-10 Cumulative Update for Microsoft Windows 10, version 22H2 (KB5066791)2025-10 Cumulative Update for Microsoft Windows Server 2008, version SP2 (KB5066877)2025-10 Cumulative Update for Microsoft Windows Server 2019, version 1809 (KB5066586)2025-10 Cumulative Update for Microsoft Windows 11, version 22H2 (KB5066793)2025-10 Cumulative Update for Microsoft Windows Server 2022, version 22H2 (KB5066782)2025-10 Cumulative Update for Microsoft Windows 10, version 1809 (KB5066586)2025-10 Cumulative Update for Microsoft Windows 10, version 1507 (KB5066837)2025-10 Cumulative Update for Microsoft Windows Server 2008 R2, version SP1 (KB5066876)2025-10 Cumulative Update for Microsoft Windows Server 2012 (KB5066875) | Oct 14, 2025 | Oct 14, 2025 |
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