CVE-2025-24990
Windows Agere Modem Driver Elevation of Privilege Vulnerability
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | microsoft |
| Product | windows 10 version 1507 |
| Ecosystems | |
| Industries | TechnologyEnterprise |
| Published | Oct 14, 2025 |
| Last Updated | Feb 26, 2026 |
⚠️ Actively Exploited — Act Now
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CVSS v3 Breakdown
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 Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Microsoft / Windows 10 Version 1507
10.0.10240.0 < 10.0.10240.21161
Microsoft / Windows 10 Version 1607
10.0.14393.0 < 10.0.14393.8519
Microsoft / Windows 10 Version 1809
10.0.17763.0 < 10.0.17763.7919
Microsoft / Windows 10 Version 21H2
10.0.19044.0 < 10.0.19044.6456
Microsoft / Windows 10 Version 22H2
10.0.19045.0 < 10.0.19045.6456
Microsoft / Windows 11 version 22H2
10.0.22621.0 < 10.0.22621.6060
Microsoft / Windows 11 Version 23H2
10.0.22631.0 < 10.0.22631.6060
Microsoft / Windows 11 Version 24H2
10.0.26100.0 < 10.0.26100.6899
Microsoft / Windows 11 Version 25H2
10.0.26200.0 < 10.0.26200.6899
Microsoft / Windows Server 2008 R2 Service Pack 1
6.1.7601.0 < 6.1.7601.27974
Microsoft / Windows Server 2008 R2 Service Pack 1 (Server Core installation)
6.1.7601.0 < 6.1.7601.27974
Microsoft / Windows Server 2008 Service Pack 2
6.0.6003.0 < 6.0.6003.23571
Microsoft / Windows Server 2008 Service Pack 2 (Server Core installation)
6.0.6003.0 < 6.0.6003.23571
Microsoft / Windows Server 2012
6.2.9200.0 < 6.2.9200.25722
Microsoft / Windows Server 2012 (Server Core installation)
6.2.9200.0 < 6.2.9200.25722
Microsoft / Windows Server 2012 R2
6.3.9600.0 < 6.3.9600.22824
Microsoft / Windows Server 2012 R2 (Server Core installation)
6.3.9600.0 < 6.3.9600.22824
Microsoft / Windows Server 2016
10.0.14393.0 < 10.0.14393.8519
Microsoft / Windows Server 2016 (Server Core installation)
10.0.14393.0 < 10.0.14393.8519
Microsoft / Windows Server 2019
10.0.17763.0 < 10.0.17763.7919
Microsoft / Windows Server 2019 (Server Core installation)
10.0.17763.0 < 10.0.17763.7919
Microsoft / Windows Server 2022
10.0.20348.0 < 10.0.20348.4294
Microsoft / Windows Server 2022, 23H2 Edition (Server Core installation)
10.0.25398.0 < 10.0.25398.1913
Microsoft / Windows Server 2025
10.0.26100.0 < 10.0.26100.6899
Microsoft / Windows Server 2025 (Server Core installation)
10.0.26100.0 < 10.0.26100.6899
References
msrc.microsoft.com: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24990 cisa.gov: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-24990 vicarius.io: https://www.vicarius.io/vsociety/posts/cve-2025-24990-detection-script-elevation-of-privilege-vulnerability-in-agere-modem-driver-affecting-windows vicarius.io: https://www.vicarius.io/vsociety/posts/cve-2025-24990-mitigation-script-elevation-of-privilege-vulnerability-in-agere-modem-driver-affecting-windows