WLAN and Bluetooth Driver Update Program (WLAN:21.40.5 / Bluetooth:21.40.5.1) CF-MX4E, CF-SX4E series - Windows 8.1 64bit only -

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  • WLAN and Bluetooth Driver Update Program (WLAN:21.40.5 / Bluetooth:21.40.5.1) CF-MX4E, CF-SX4E series - Windows 8.1 64bit only -
Category Communication Network
Model

CF-MX4E (mk1)
CF-SX4E Asia-model (mk1)
Operating System Windows 8.1 64bit
Language MUI,English
Release Date 10/13/20
File Name wlan_v21_40_5_w81_bm.exe 190,857,408 bytes
bt_v21_40_5_1_w81.exe 11,232,416 bytes
wlan_v21_40_5_bt_v21_40_5_1_win81_bm_eng.pdf 340,241 bytes
Index No 77039

File Description

This software is intended to update the Wireless LAN driver and Bluetooth driver of the target models.

The version after applying this software is as follows.
 - WLAN Driver : Ver.21.40.5 * 2020/10/13 Updated
 - Bluetooth Driver : Ver.21.40.5.1 * 2020/10/13 Updated

Reason for Update

  • The modification of the Intel WLAN driver against the issue of Wi-Fi Protected Access II (WPA2) vulnerability (KRACKs).
  • The modification of vulnerability when installing Intel wireless driver and related software.  * 2018/5/10 Added
  • The modification of Bluetooth pairing vulnerability.  * 2018/7/31 Added
  • We released the counter measure driver for the following vulnerabilities.
  1. Intel® PROSet/Wireless Software Vulnerability Information
    INTEL-SA-00169, INTEL-SA-00182, INTEL-SA-00188, INTEL-SA-00204, INTEL-SA-00232,
    INTEL-SA-00287, INTEL-SA-00288 and Intel® Wireless Bluetooth® Vulnerability Information INTEL-SA-00337, INTEL-SA-00355  * 2020/10/13 Added

Notes

  • Updating Wireless LAN driver will reset the advanced properties of Wireless LAN device in device manager to the factory default settings.
    If the settings have been changed from factory default, please change them again after updating the driver.
  • Before updating Bluetooth driver, please delete pairing for Bluetooth devices.
    After updating Bluetooth driver, you need to pair Bluetooth devices again.
  • When updating Wireless LAN driver and Bluetooth driver, please connect AC Adaptor and fully charged battery.
  • Updating Wireless LAN driver will remove Cisco Compatible eXtensions(CCX) component.

* Please read the update instructions carefully, before using the update program.

Revision History

- Oct 13, 2020: Revised the Update Program and Update Instructions.
- Jul 31, 2018: Revised the Bluetooth update program and Update Instructions.
- Mar 19, 2018: Released the first edition.