CVE-2025-21273

Summary

CVE-2025-21273 is a remote code execution vulnerability affecting the Windows Telephony Service. An attacker can exploit this vulnerability by sending a specially crafted RTP (Real-time Transport Protocol) packet to a targeted system. Successful exploitation allows the attacker to execute arbitrary code with system privileges. This vulnerability poses a significant risk to organizations with VoIP (Voice over Internet Protocol) systems, potentially leading to unauthorized access, data theft, or system compromise. Microsoft has released a security update to address this issue. It is strongly recommended that affected systems be patched as soon as possible to mitigate the risk.

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