Just parking the firmware upgrade for 850L since many Unifi users would need them.
http://www.dlink.com.my/dir-850l-msia/#firmware For Malaysia DIR-850L provided by TM only (with/without TM Logo)
Note: After upgrade wireless SSID will include a suffix “@unifi” on your existing Wireless SSID.
Upgrade Guide: as attached in the zip file
Add @unifi for wireless ssid.
Support to download firmware with https.
Disable web file access on WAN site (in default status).
Lock console. User must log in before using console.
Fix silex (reboot) issue. jcpd command won’t be processed.
Fix issue 3: WAN && LAN - revB - Retrieving admin password, gaining full access using the custom mydlink Cloud protocol Register mydlink with https protocol.
Fix issue 4: WAN - revA and revB - Weak Cloud protocol Connect to mydlink server with https protocol.
Fix issue 5: LAN - revB - Backdoor access Remove mfcd (telnetd).
Fix issue 6: WAN && LAN - revA and revB - Stunnel private keys Every DIR-850 has unique certificate.
Refine issue 8: Local - revA and revB - Weak files permission and credentials stored in plain text Remove un-necessary files.
Fix issue 9: WAN - revB - Pre-Auth RCEs as root (L2) Avoid command injection in DHCP domain name, Prevent the command injection in the parameter from DHCP server.
Solve the security issue [CVE-2016-6563 / VU#677427]: Dlink DIR routers HNAP Login stack buffer overflow
Support authentication for console access.
Fix multiple tr069 issue.