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CVE-2025-21243 | Microsoft Windows up to Server 2025 Telephony Service integer overflow
A vulnerability was found in Microsoft Windows. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component Telephony Service. The manipulation leads to integer overflow. This vulnerability is known as CVE-2025-21243. The attack can be launched remotely. There is no exploit available. It is recommended to apply a patch to fix this issue.