New York: In a bid to protect users, Google has disclosed details about a critical Windows bug that affects Windows kernel, an integral part of the operating system.


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The internet giant said it reported the bug to Microsoft 10 days ago but the company has done nothing to address the issue publicly.


The Windows vulnerability is a local privilege escalation in the Windows kernel that can be used as a security sandbox escape.


"This vulnerability is particularly serious because we know it is being actively exploited," Google said in a blog post on Monday.


Google said it has already deployed a fix to protect Chrome users, but Windows is still vulnerable.


"We encourage users to verify that auto-updaters have already updated Flash and to manually update if not and to apply Windows patches from Microsoft when they become available for the Windows vulnerability," the blog post added.