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Vulnerability · Published Oct 14, 2025 · Assigned by microsoft

CVE-2025-24052Windows Agere Modem Driver Elevation of Privilege Vulnerability

High 7.8

In plain English

A high-severity stack buffer overflow in Windows 10 Version 1507 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.5% (higher than 85% of all known vulnerabilities).

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)2.5%top 14.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
Microsoft Windows 10 Version 1507 10.0.10240.0 – before 10.0.10240.21161
Microsoft Windows 10 Version 1607 10.0.14393.0 – before 10.0.14393.8519
Microsoft Windows 10 Version 1809 10.0.17763.0 – before 10.0.17763.7919
Microsoft Windows 10 Version 21H2 10.0.19044.0 – before 10.0.19044.6456
Microsoft Windows 10 Version 22H2 10.0.19045.0 – before 10.0.19045.6456
Microsoft Windows 11 version 22H2 10.0.22621.0 – before 10.0.22621.6060
Microsoft Windows 11 Version 23H2 10.0.22631.0 – before 10.0.22631.6060
Microsoft Windows 11 Version 24H2 10.0.26100.0 – before 10.0.26100.6899
Microsoft Windows 11 Version 25H2 10.0.26200.0 – before 10.0.26200.6899
Microsoft Windows Server 2008 R2 Service Pack 1 6.1.7601.0 – before 6.1.7601.27974
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) 6.1.7601.0 – before 6.1.7601.27974
Microsoft Windows Server 2008 Service Pack 2 6.0.6003.0 – before 6.0.6003.23571
Microsoft Windows Server 2008 Service Pack 2 (Server Core installation) 6.0.6003.0 – before 6.0.6003.23571
Microsoft Windows Server 2012 6.2.9200.0 – before 6.2.9200.25722
Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.0 – before 6.2.9200.25722
Microsoft Windows Server 2012 R2 6.3.9600.0 – before 6.3.9600.22824
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 – before 6.3.9600.22824
Microsoft Windows Server 2016 10.0.14393.0 – before 10.0.14393.8519
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 – before 10.0.14393.8519
Microsoft Windows Server 2019 10.0.17763.0 – before 10.0.17763.7919
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 – before 10.0.17763.7919
Microsoft Windows Server 2022 10.0.20348.0 – before 10.0.20348.4294
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.0 – before 10.0.25398.1913
Microsoft Windows Server 2025 10.0.26100.0 – before 10.0.26100.6899
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 – before 10.0.26100.6899

Weakness: CWE-121 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

References