CVE-2025-24990
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-14

Last updated on: 2025-11-18

Assigner: Microsoft Corporation

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.
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Meta Information
Published
2025-10-14
Last Modified
2025-11-18
Generated
2026-06-26
AI Q&A
2025-10-14
EPSS Evaluated
2026-06-24
NVD
CVE-2025-24990
Affected Vendors & Products
Showing 18 associated CPEs
Vendor Product Version / Range
microsoft windows_10_1507 to 10.0.10240.21161 (exc)
microsoft windows_10_1607 to 10.0.14393.8519 (exc)
microsoft windows_10_1809 to 10.0.17763.7919 (exc)
microsoft windows_10_21h2 to 10.0.19044.6456 (exc)
microsoft windows_10_22h2 to 10.0.19045.6456 (exc)
microsoft windows_11_22h2 to 10.0.22621.6060 (exc)
microsoft windows_11_23h2 to 10.0.22631.6060 (inc)
microsoft windows_11_24h2 to 10.0.26100.6899 (exc)
microsoft windows_11_25h2 to 10.0.26200.6899 (exc)
microsoft windows_server_2008 *
microsoft windows_server_2008 r2
microsoft windows_server_2012 *
microsoft windows_server_2012 r2
microsoft windows_server_2016 to 10.0.14393.8519 (inc)
microsoft windows_server_2019 to 10.0.17763.7919 (exc)
microsoft windows_server_2022 to 10.0.20348.4294 (exc)
microsoft windows_server_2022_23h2 to 10.0.25398.1913 (exc)
microsoft windows_server_2025 to 10.0.26100.6899 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-822 The product obtains a value from an untrusted source, converts this value to a pointer, and dereferences the resulting pointer.
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Executive Summary

This vulnerability involves the Agere Modem driver (ltmdm64.sys) that ships with supported Windows operating systems. Microsoft has identified security issues with this third-party driver and has removed it in the October cumulative update. The driver is being deprecated due to these vulnerabilities.

Impact Analysis

The vulnerability can impact users by causing fax modem hardware that depends on the ltmdm64.sys driver to stop functioning on Windows. Additionally, the vulnerability has a high severity score indicating it could lead to significant confidentiality, integrity, and availability impacts if exploited.

Mitigation Strategies

Microsoft recommends removing any existing dependencies on the Agere Modem hardware that relies on the ltmdm64.sys driver. The vulnerable driver has been removed in the October cumulative update, so applying this update will mitigate the vulnerability. Note that fax modem hardware dependent on this driver will no longer work after removal.

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