PCWorld posted a news story that Microsoft is downplaying the threat posed to Windows users by a recently-revealed vulnerability, saying an exploit is unlikely.

The flaw in the Windows Server Message Block (SMB) network and file-sharing protocol was disclosed Monday by someone identified only as " Cupidon-3005" on the Full Disclosure security mailing list. Cupidon-3005 posted proof-of-concept code to the list.

French and Danish researchers later said hackers might be able to exploit the bug to hijack Windows PCs.

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