Federal agencies running virtualized computer systems might be vulnerable to a new cyber attack. The warning comes from the U.S. Computer Emergency Readiness Team.

PC World reports a flaw exists in systems running virtual machines in 64-bit mode using Intel processors. The flaw could let attackers take control of the machines as if they were system administrators.

Vulnerable operating systems include Microsoft Windows 7 and Red Hat Linux. Computers with AMD processors are not vulnerable. The flaw mainly affects Xen virtualization software.

U.S. CERT says VMware systems are safe.

This story is part of Federal News Radio’s daily Cybersecurity Update. For more cybersecurity news, click here.

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