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CVE-2025-24990Windows Agere Modem Driver Elevation of Privilege Vulnerability

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.

7.8 HIGHEPSS 6.51%⚡ Known Exploited (CISA KEV)NVD: Analyzed

OverviewAffected ProductsReferences
NVD CVE.org

Overview

Severity

ScoreSeverityVersionVector String
7.8HIGH3.1microsoft (CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8HIGH3.1microsoft (CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

CISA required action

⚡ Known exploited · remediation due Nov 4, 2025

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Details

CVE ID
CVE-2025-24990
Status
Analyzed
Assigner (CNA)
microsoft
Published
Oct 14, 2025
Last modified
2026-06-17 08:59 UTC
Weaknesses
  • CWE-822 · Untrusted Pointer Dereference

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-08 11:18 UTC.