One service bulletin addresses a remote code execution flaw that exists directly within the Windows kernel.

The three "important" fixes involve a patch for Windows Explorer to repair a remote code execution flaw, a patch to fix similar vulnerabilities in the Microsoft Windows Hyperlink Object Library and a patch for the kernel flaw that could allow the unauthorized elevation of user privileges by an attacker.

Microsoft recommends that companies download and install the patches immediately to correct the vulnerabilities.

Last month, Microsoft released seven security patches as part of its monthly service bulletin releases.