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Unrated severityCISA KEVNVD Advisory· Published Oct 14, 2025· Updated Feb 26, 2026

Windows Agere Modem Driver Elevation of Privilege Vulnerability

CVE-2025-24990

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

25
  • Microsoft/Windows 10 Version 1507v5
    Range: 10.0.10240.0
  • Microsoft/Windows 10 Version 1607v5
    Range: 10.0.14393.0
  • Microsoft/Windows 10 Version 1809v5
    Range: 10.0.17763.0
  • Microsoft/Windows 10 Version 21H2v5
    Range: 10.0.19044.0
  • Microsoft/Windows 10 Version 22H2v5
    Range: 10.0.19045.0
  • Microsoft/Windows 11 version 22H2v5
    Range: 10.0.22621.0
  • Microsoft/Windows 11 Version 23H2v5
    Range: 10.0.22631.0
  • Microsoft/Windows 11 Version 24H2v5
    Range: 10.0.26100.0
  • Microsoft/Windows 11 Version 25H2v5
    Range: 10.0.26200.0
  • Microsoft/Windows Server 2008 R2 Service Pack 1v5
    Range: 6.1.7601.0
  • Microsoft/Windows Server 2008 R2 Service Pack 1 (Server Core installation)v5
    Range: 6.1.7601.0
  • Microsoft/Windows Server 2008 Service Pack 2v5
    Range: 6.0.6003.0
  • Microsoft/Windows Server 2008 Service Pack 2 (Server Core installation)v5
    Range: 6.0.6003.0
  • Microsoft/Windows Server 2012v5
    Range: 6.2.9200.0
  • Microsoft/Windows Server 2012 R2v5
    Range: 6.3.9600.0
  • Microsoft/Windows Server 2012 R2 (Server Core installation)v5
    Range: 6.3.9600.0
  • Microsoft/Windows Server 2012 (Server Core installation)v5
    Range: 6.2.9200.0
  • Microsoft/Windows Server 2016v5
    Range: 10.0.14393.0
  • Microsoft/Windows Server 2016 (Server Core installation)v5
    Range: 10.0.14393.0
  • Microsoft/Windows Server 2019v5
    Range: 10.0.17763.0
  • Microsoft/Windows Server 2019 (Server Core installation)v5
    Range: 10.0.17763.0
  • Microsoft/Windows Server 2022v5
    Range: 10.0.20348.0
  • Microsoft/Windows Server 2022, 23H2 Edition (Server Core installation)v5
    Range: 10.0.25398.0
  • Microsoft/Windows Server 2025v5
    Range: 10.0.26100.0
  • Microsoft/Windows Server 2025 (Server Core installation)v5
    Range: 10.0.26100.0

Patches

0

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

1

News mentions

0

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