CVE-2025-24990
Windows Agere Modem Driver Elevation of Privilege Vulnerability
KEVHIGH 7.8EPSS 6.4%
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
- Microsoft · Windows 10 Version 1507 · Windows 10 Version 1607 · Windows 10 Version 1809 · Windows 10 Version 21H2 · Windows 10 Version 22H2 · Windows 11 version 22H2
- CVSS v3.1 MICROSOFT
- 7.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS
- 6.37% chance of exploitation in the next 30 days, 94th percentile
- CISA KEV
- added 2025-10-14
- Published
- 2025-10-14
- Updated
- 2026-02-26
Proof-of-concept exploits (1)
- moiz-2x/CVE-2025-24990_POC58★ · 2025-10-31
Security advisories
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24990
- https://www.vicarius.io/vsociety/posts/cve-2025-24990-detection-script-elevation-of-privi…
- https://www.vicarius.io/vsociety/posts/cve-2025-24990-mitigation-script-elevation-of-priv…