Microsoft Corp. yesterday warned of a critical vulnerability that affects users of Word running on Windows 2000, XP and Server 2003 SP1 -- several weeks after one security company first reported an exploit and a day after a second vendor confirmed ongoing attacks.
In an advisory posted Friday, Microsoft acknowledged "public reports of very limited, targeted attacks" that exploit a bug in the Microsoft Jet Database Engine, a Windows component that provides data access to applications including Microsoft Access and Visual Basic.
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