CVE-2025-24990 KEV
7.8
HIGH · CVSS 3.1 · EPSS 6.4% (pctl 93)
Patch first
On CISA KEV — known exploited in the wild, due 2025-11-04.
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.
Scoring
| CVSS | 7.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 6.37% — more likely to be exploited than 93% of all CVEs |
| Weakness | CWE-822 |
| On CISA KEV | yes — remediate by 2025-11-04 |
| Public exploit | none known |
| Published | 2025-10-14 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | Microsoft Windows Untrusted Pointer Dereference Vulnerability |
|---|---|
| Added | 2025-10-14 |
| Due | 2025-11-04 |
| Vendor / product | Microsoft / Windows |
| Ransomware use | none reported |
Affected (16)
| Vendor | Product |
|---|---|
| microsoft | windows 10 1507 |
| microsoft | windows 10 1607 |
| microsoft | windows 10 1809 |
| microsoft | windows 10 21h2 |
| microsoft | windows 10 22h2 |
| microsoft | windows 11 22h2 |
| microsoft | windows 11 23h2 |
| microsoft | windows 11 24h2 |
| microsoft | windows 11 25h2 |
| microsoft | windows server 2008 |
| microsoft | windows server 2012 |
| microsoft | windows server 2016 |
| microsoft | windows server 2019 |
| microsoft | windows server 2022 |
| microsoft | windows server 2022 23h2 |
| microsoft | windows server 2025 |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24990
- https://www.vicarius.io/vsociety/posts/cve-2025-24990-detection-script-elevation-of-privilege-vulnerability-in-agere-modem-driver-affecting-windows
- https://www.vicarius.io/vsociety/posts/cve-2025-24990-mitigation-script-elevation-of-privilege-vulnerability-in-agere-modem-driver-affecting-windows
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-24990
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