⚠ Actively exploited
Added to CISA KEV on 2025-10-14. Federal agencies required to patch by 2025-11-04. 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..
CVE-2025-24990
Severity
7.8HIGH
EPSS
3.9%
top 11.72%
CISA KEV
KEV
Added 2025-10-14
Due 2025-11-04
Exploit
No known exploits
Affected products
Timeline
PublishedOct 14
KEV addedOct 14
KEV dueNov 4
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.
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9
Affected Packages34 packages
🔴Vulnerability Details
3GHSA▶
GHSA-9g9x-fc99-93r6: Microsoft is aware of vulnerabilities in the third party Agere Modem driver that ships natively with supported Windows operating systems↗2025-10-14