CVE-2025-21205

Summary

CVE-2025-21205 is a critical heap-based buffer overflow vulnerability affecting Windows Telephony Service. An attacker, without authorization, can exploit this issue over a network, leading to arbitrary code execution. This vulnerability poses a significant risk as the Windows Telephony Service runs with high privileges, making successful exploitation potentially devastating. The attacker could gain full control of the affected system, installing malware, stealing sensitive data, or launching further attacks. Organizations must prioritize patching to mitigate this risk.

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