Security Fixes:

• [PSV-2018-0419]Out-of-bounds Read (DoS) via "pt_name" field of "FW_pt.htm"  [PSV-2018-0417]Buffer Overflow (DoS) via " sysDNSHost_Netgear_account" in "DNS_ddns.htm"
• [PSV-2018-0425]Stored XSS in "FW_remote.htm" via "sysDNSHost_Netgear_account" field of "DNS_ddns.htm"
• [PSV-2018-0416]Buffer Overflow (DoS) via "sysDNSPassword_Netgear_account" in "DNS_ddns.htm"
• [PSV-2018-0377]Stack-based buffer overflow in "httpd"
• [PSV-2019-0029](KCode issue)
• For more information about security vulnerabilities, visit https://www.netgear.com/about/security.

Download Link: http://www.downloads.netgear.com/files/GDC/D6400/D6400-V1.0.0.88_1.0.88.zip

Firmware  Update Instructions:

To  update your product’s firmware, follow the instructions in your product’s user manual. To find your user manual, visit https://www.netgear.com/support/, enter your model number in the search box, and click the Documentation button on the product page.