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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.
Use CWE-822, Microsoft vendor hub and Windows 10 1507 product page to widen CVE-2025-24990 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2025-59295, CVE-2025-64680 and CVE-2025-64679 for nearby disclosures in the same product family. Additional editorial context is available in Weekly Security Roundup: Navigating the April 2026 Threat Landscape and Critical Framework Exploits.