Article ID : 00205262 / Last Modified : 28/12/2018Print

Notice for Sony VAIO Wireless LAN (Wi-Fi) Communication Standard WPA2 Vulnerability

    February 8, 2018


    Dear valued Sony VAIO customers,

    Thank you for your continued support for Sony products.

    We have identified that multiple vulnerabilities have been found in Wi-Fi Protected Access 2*. WPA 2 is a wireless LAN (Wi-Fi) communication standard. These vulnerabilities may allow attackers to target encrypted information transmitted across Wi-Fi networks.

    To address this problem, it is strongly suggested customers to take following countermeasures to avoid the effect of this vulnerability on your Sony VAIO computers.

    *CERT: Vulnerability Note VU#228519
    Wi-Fi Protected Access (WPA) handshake traffic can be manipulated to induce nonce and session key reuse (

    <Affected Models>
    All models of Sony VAIO equipped with wireless LAN compatible with the WPA 2 communication standard.

    By updating the Windows OS (* 1) using Windows Update, you can avoid the effect of this vulnerability while the OS is running.
    Please carry out one of the following as a workaround when the OS is not running.

    1. Disable Wake-on-Wi-Fi (* 2) function.
    2. Disable sleep mode.
    3. Do not use wireless LAN (Wi-Fi). Use a wired LAN connection.

    - Windows Update (* 1)
    Not supported for Windows Vista and earlier models. Please refer to the announcement on “End of support notification for products using the Windows Vista operating system”

    - Wake-on-Wi-Fi (* 2) Confirmation and Instructions for Setup
    Go to Control Panel > Network and Internet > Network and Sharing Center > Change adapter settings > Right-click Wireless network connection and select Properties) > Click the Configuration button > Go to Power supply management tab

    When the “Allow this device to wake the computer” option is grayed out, the Wake-on-Wi-Fi (* 2) function is disabled.

    If the “Allow this device to wake the computer” option is checked, you can disable the Wake-on-Wi-Fi (* 2) function by unchecking it.

    Customers with the affected products, please contact Sony technical support hotline for enquiries:
    Hong Kong: (852) 2833-5129
    Macau: 080-0039

    Thank you for your understanding and we apologize for any inconvenience this may have caused.


    Sony Corporation of Hong Kong Limited


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