Cyber Risks · Krebs on Security

Microsoft Fixes Scary Bluetooth Flaw, 21 Others

Summary: Microsoft released updates fixing at least 22 security flaws, with the sole critical patch addressing a Bluetooth vulnerability in Windows Vista and Windows 7 that lets nearby attackers seize control of a system with no user action, requiring only that Bluetooth be turned on. Symantec's Joshua Talbot said the exploit sends malicious data while establishing a Bluetooth connection, gaining access through a memory corruption issue before any notification reaches the user, and noted it could in theory power a worm spreading between Bluetooth-enabled Windows laptops.

Why it matters: Many Windows laptops turn Bluetooth on whenever the wireless component is active, so the vulnerable radio may be listening continuously rather than only when a user chooses to connect - and the flaw needs no click, no prompt, and no network connection to exploit.

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Topics
Vulnerabilities & Patching
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