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

> CVE-2025-24990: Windows Agere Modem Driver Elevation of Privilege Vulnerability. CVSS 7.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2025-24990
Last updated: 2026-06-17T08:59:56Z

- Published: 2025-10-14 17:00 UTC · Updated: 2026-06-17 08:59 UTC · Assigner: microsoft
- CVSS: 7.8 (CVSS 3.1) · Severity: High · Vector: 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
- EPSS: 6.4%, 94th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2025-10-14, federal due date 2025-11-04, ransomware use: Unknown
- CWE: CWE-822

## 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.

## CISA required action

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

## Affected vendors and products

- Microsoft: Windows 10 Version 1507
- Microsoft: Windows 10 Version 1607
- Microsoft: Windows 10 Version 1809
- Microsoft: Windows 10 Version 21H2
- Microsoft: Windows 10 Version 22H2
- Microsoft: Windows 11 version 22H2
- Microsoft: Windows 11 Version 23H2
- Microsoft: Windows 11 Version 24H2
- Microsoft: Windows 11 Version 25H2
- Microsoft: Windows Server 2008 R2 Service Pack 1
- Microsoft: Windows Server 2008 R2 Service Pack 1 (Server Core installation)
- Microsoft: Windows Server 2008 Service Pack 2
- Microsoft: Windows Server 2008 Service Pack 2 (Server Core installation)
- Microsoft: Windows Server 2012
- Microsoft: Windows Server 2012 R2
- Microsoft: Windows Server 2012 R2 (Server Core installation)
- Microsoft: Windows Server 2012 (Server Core installation)
- Microsoft: Windows Server 2016
- Microsoft: Windows Server 2016 (Server Core installation)
- Microsoft: Windows Server 2019
- Microsoft: Windows Server 2019 (Server Core installation)
- Microsoft: Windows Server 2022
- Microsoft: Windows Server 2022, 23H2 Edition (Server Core installation)
- Microsoft: Windows Server 2025
- Microsoft: Windows Server 2025 (Server Core installation)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-24990)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-24990)
- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24990](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24990)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2025-24990 · Markdown: https://rewindex.com/cve/CVE-2025-24990.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-24990 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:17:02.089Z