techhelp wrote

Model :

Hardware Version : Not Clear

Firmware Version :

ISP :

I have a TD-W8951ND Hardware version 5.1
It came installed with Firmware version 5.0.0. Build 120807 Rel. 34393.
Every time I tried to update with a newer version from tp-link website it failed with (ERROR: FAIL TO UPDATE... The uploaded file was not accepted..)

This was NOT caused by trying to update over a wireless connection.
I used a wired network connection.

In the end I found a solution and I have documented the process.

Fact of the matter is, the update fails with certain versions of the firmware while other versions are accepted but there does not seem to be a certain logic to this.

One must find out by trial and error which versions are accepted .

So my Original firmware was:
120807

The upgrade failed with (ERROR: FAIL TO UPDATE... The uploaded file was not accepted..) with these versions:
140514
141114
160113

As there were no older version on the tp-link support website I was stuck with the old firmware version, that was vulnerable to the ROM-0 exploit according to Avast network scanner.

After some research I found some older versions on Softpedia:
http://drivers.softpedia.com/downloadTag/TD-W8951NDv5

And finally with this firware version the upgrade succeeded:
http://drivers.softpedia.com/get/Router-Switch-Access-Point/TP-Link/TP-Link-TD-W8951NDv5-Router-Firmware-131104.shtml

131104
With this firmware version update succeeded.
From there on I had to use this order of version updates:
141114
160113

The modem is now on the latest firmware version and the vulnerability is no longer reported.