CVE-2025-21302

Summary

CVE-2025-21302 is a remote code execution vulnerability affecting the Windows Telephony Service. Successful exploitation of this vulnerability allows an attacker to execute arbitrary code on the targeted system. This issue occurs due to insufficient input validation during the handling of specially crafted RTP (Real-time Transport Protocol) packets. Exploitation may lead to significant security risks, including unauthorized system access and data theft. Microsoft has released a security update to address this vulnerability. It is strongly recommended that users install the patch as soon as possible to mitigate the risk of potential attacks.

Prevent cyber attacks with Recorded Future by prioritizing and patching critical vulnerabilities being exploited by threat actors targeting your industry. Book your demo to learn more.