RT-AC66U

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Purchase

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Availability

Since this product is advertised on Asus, this model is currently being manufactured.

Performance

Wireless Performance Explained

Advertised Speed of 5Ghz band

Theoretical 802.11ac speed on 5Ghz band (using 80Mhz channel, 256-QAM, 400 ns GI):

  • 3 spatial streams x 433.3 mbps/stream = 1299.9 mbps

Note

This is classified as a “Mid-Performer” 802.11ac wifi system. If higher performance is needed, consider upgrading to a “Top-Performer”. Read: What’s the fastest 802.11ac (wifi5) wifi system possible?

Security

  • WPA2-Personal (128-bit encryption)
  • WPA2-Enterprise (128-bit encryption)

Firmware Changelog

Does this support automatic firmware updates? To find out. If you have this model, and are running the latest firmware, contact us.

Download the latest firmware from asus.com

3.0.0.4.382.50470 (2018-05-21)

  • Support multi-language (UTF-8) network name. (Windows XP and Windows 7 do not support UTF-8 format SSID. These two OS may see gibberish if using multi-language SSID.)
  • Improved system stability.
  • Improved compatibility for IntelⓇ CentrinoⓇ 802.11ac card.
  • Fixed XSS vulnerability. Thanks to Yonghui Han of Fortinet’s FortiGuard Labs.
  • Fixed CVE-2018-8877, CVE-2018-8878, CVE-2018-8879
  • Fixed plain text password vulnerability in lighttpd.
  • Modified Quick Internet Setup wizard process.
  • Main SSID and guest network can hide independently.
  • Fixed AiCloud login issue.

3.0.0.4.380.8228 (2018-03-28)

  • Fixed information disclosure vulnerability. Thanks to Haitan Xiang and Fand Wang.
  • Fixed CVE-2018-5721 Stack-base buffer overflow vulnerability
  • Fixed CVE-2018-8826 remote code code execution vulnerability. Thanks to Chris Wood.
  • Fixed CVE-2018-5999 HTTP authorization bypass and CVE-2018-6000. An independent security researcher has reported this vulnerability to Beyond Security’s SecuriTeam Secure Disclosure program
  • Fixed remote code execution vulnerability. Thanks to David Maciejak of Fortinet’s FortiGuard Labs
  • Fixed CVE-2017-14491: DNS - 2 byte heap based overflow
  • Fixed CVE-2017-14492: DHCP - heap based overflow
  • Fixed CVE-2017-14493: DHCP - stack based overflow
  • Fixed CVE-2017-14494: DHCP - info leak
  • Fixed CVE-2017-14495: DNS - OOM DoS
  • Fixed CVE-2017-14496: DNS - DoS Integer underflow
  • Fixed CVE-2017-13704: Bug collision
  • Fixed AiCloud 2.0 Reflected XSS Vulnerability. Thanks to Guy Arazi and Niv Levi contribution.

Thanks to Guy Arazi for following vulnerabilities.

  • AiCloud 2.0 Stored XSS Share link manager.
  • AiCloud 2.0 Reflected XSS - “share a link”
  • Download Master HTTP service DoS vulnerability.
  • Download Master Reflected XSS Main login.