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CVE-2025-21409 | Microsoft Windows up to Server 2025 Telephony Service heap-based overflow
A vulnerability, which was classified as critical, was found in Microsoft Windows. Affected is an unknown function of the component Telephony Service. The manipulation leads to heap-based buffer overflow. This vulnerability is traded as CVE-2025-21409. It is possible to launch the attack remotely. There is no exploit available. It is recommended to apply a patch to fix this issue.