CVE-2025-24990
BaseFortify
Publication date: 2025-10-14
Last updated on: 2025-11-18
Assigner: Microsoft Corporation
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| 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 ID | Description |
|---|---|
| CWE-822 | The product obtains a value from an untrusted source, converts this value to a pointer, and dereferences the resulting pointer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
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.
How can this vulnerability impact me? :
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.
What immediate steps should I take to mitigate this vulnerability?
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.