CVE-2025-21367

Summary

CVE-2025-21367 is a newly disclosed Windows vulnerability that affects the Win32 Kernel Subsystem. This elevation of privilege issue grants attackers the ability to escalate their privileges, potentially allowing them to gain system-level access on affected systems. Successful exploitation could result in significant harm, including data theft, unauthorized system modifications, or the installation of malware. Microsoft has not yet released a patch for this vulnerability, leaving affected systems at risk until a fix becomes available. Users are strongly encouraged to apply security best practices, such as applying software updates in a timely manner and implementing robust access control policies, to mitigate risk in the interim.

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