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entry for Security Update for Windows XP (KB920213)
. This critical security update for Windows XP addresses a vulnerability in the Microsoft Agent that could allow remote code execution.There is a remote code execution vulnerability in the way that Microsoft Agent handles specially crafted .ACF files. An attacker could exploit the vulnerability by constructing a specially crafted Web page that could potentially allow remote code execution if a user viewed the Web page. An attacker who successfully exploited this vulnerability could take complete control of an affected system.