CVE-2025-21307

Summary

CVE-2025-21307 is a remote code execution vulnerability affecting the Windows Reliable Multicast Transport Driver (RMCAST). Successful exploitation of this vulnerability allows an attacker to execute arbitrary code on a victim's system. This can lead to unauthorized access, data theft, or further system compromise. The vulnerability is caused by insufficient input validation in the RMCAST driver. Microsoft has released a security update to address this issue, and it is strongly recommended that users install the patch as soon as possible to protect against potential attacks.

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