CVE-2025-21417

Summary

CVE-2025-21417 is a remote code execution vulnerability affecting the Windows Telephony Service. Attackers can exploit this flaw by sending specially crafted RTP (Real-time Transport Protocol) packets to a targeted system, leading to arbitrary code execution with system privileges. Successful exploitation could result in the installation of malware, unauthorized access, or other malicious activities. Microsoft recommends installing the latest security updates to mitigate this risk. In summary, CVE-2025-21417 is a significant vulnerability in the Windows Telephony Service, enabling remote code execution via maliciously crafted RTP packets. Attackers can utilize this issue to gain unauthorized access, install malware, or perform other malicious activities. Microsoft strongly advises installing the latest security updates to address this risk.

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