ISP SuddenLink Won't Update Firmware C6300 AC1750

Here's my email to Suddenlink about the issue (which I've also submitted as an informal complaint to the FCC. I'll update once that part comes in):

On 7/16/2017 1:57 PM, ********* wrote:

Afternoon, 
I've already tried phone support a few times, but no-one has ever actually solved the issue. My problem, is that my cable-modem firmware is out of date, and the reps that I've spoken with claim to not be able to push an update to it. Here's the link to the version info: 
https://kb.netgear.com/000036375/What-s-the-latest-firmware-version-of-my-NETGEAR-cable-modem-or-modem-router# 
 
And the model info: 
https://www.netgear.com/support/product/C6300.aspx#ConfigurationAssistance_CommonTopics 
 
The thing is, I'm not the only one with this device, having this issue with Suddenlink: 
https://community.netgear.com/t5/Cable-Modems-Routers/ISP-SuddenLink-Won-t-Update-Firmware-C6300-AC1750/m-p/1272226/highlight/false#M8132 
 
Why do I care? Here's the last 4 security bulletins from Netgear about my device: 
https://kb.netgear.com/000038560/Security-Advisory-for-Vulnerability-on-Select-Cable-Modems-and-Gateways-PSV-2017-2165 
https://kb.netgear.com/000038779/Security-Advisory-for-CVE-2017-7494-Samba-Remote-Code-Execution 
https://kb.netgear.com/30632/Web-GUI-Password-Recovery-and-Exposure-Security-Vulnerability 
https://kb.netgear.com/27253/NETGEAR-Product-Vulnerability-Advisory-Authentication-Bypass-and-Information-Disclosure-on-Home-Routers 
 
The firmware update is an ISP responsibility, and not something a customer is allowed to to, by Netgear, or the ISP (In this case, Suddenlink). I'm not sure which tier of support needs to see this, but the last few times that I've called about this, I've been told that there's nothing they can do, and that I should try a recommended paid support service (I'm not paying someone else to look into Suddenlink's problem, and tell me that Suddenlink is really the only one who can fix it). 
 
Please let me know when you plan on pushing this update.

Suddenlinks Response:

Tue, Jul 18, 2017 at 11:34 AM

Hi ,

Thank you for choosing Suddenlink email support and granting me the opportunity to assist you today.

I am sorry to hear that your firmware is out of date, I understand how upsetting that can be. Suddenlink is able to send firmware updates to our modems which can possibly work on modems of similar models, however we do not currently have the ability to offer firmware updates for most 3rd party modems. These firmware updates should be provided by the modem manufacturer, and they would need to be contacted through their technical support contacts to have this issue addressed. I am sorry for any inconvenience this causes you. If you have any additional questions or concerns about your services or equipment please contact us using one of the methods listed below and we will be happy to assist you.

Thank you for choosing Suddenlink.  If you have any further questions, you may contact us Monday - Friday 8am to 10pm or 9am to 6pm on Saturday and Sunday via our online chat at http://www.suddenlink.com/contact-us/#tabs-3 or by phone at 1-888-822-5151.  We are available to assist you 24 hours a day, 7 days a week, by phone.

Sincerely,
*****************
Suddenlink Customer Support