This update resolves a newly-discovered, publicly reported vulnerability. A vulnerability exists in the HTML Help ActiveX control in Windows that could allow information disclosure or remote code execution on an affected system. This vulnerability is documented in the Vulnerability Details section of this bulletin.
If a user is logged on with administrative privileges, an attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full privileges. Users whose accounts are configured to have fewer privileges on the system could be less impacted than users who operate with administrative privileges.
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