CVE-2017-9476

Name: CVE-2017-9476
Creator: NVD / NIST
Published: 2017-07-31T03:29:00.237+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.70%

Last modified Jun 17, 2026

CVE-2017-9476 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421733-160420a-CMCST); Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST); and Arris TG1682G (eMTA&DOCSIS version 10.0.132.SIP.PC20.CT, software version TG1682_2.2p7s2_PROD_sey) devices makes it easy for remote attackers to determine the hidden SSID and passphrase for a Home Security Wi-Fi network.. EPSS estimates a 1.70% chance of exploitation in the next 30 days.

Description

The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421733-160420a-CMCST); Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST); and Arris TG1682G (eMTA&DOCSIS version 10.0.132.SIP.PC20.CT, software version TG1682_2.2p7s2_PROD_sey) devices makes it easy for remote attackers to determine the hidden SSID and passphrase for a Home Security Wi-Fi network.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

1.70%

74.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Cisco	Dpc3939 Firmware	dpc3939-p20-18-v303r20421746-170221a-cmcst
Cisco	Dpc3939 Firmware	dpc3939-p20-18-v303r20421733-160420a-cmcst
Commscope	Arris Tg1682g Firmware	10.0.132.sip.pc20.ct
Commscope	Arris Tg1682g Firmware	tg1682_2.2p7s2_prod_sey

References

https://github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-18.home-security-wifi-network.txtExploit, Third Party Advisory
https://github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-18.home-security-wifi-network.txtExploit, Third Party Advisory

Timeline

Published: Jul 31, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-9476?

How severe is CVE-2017-9476?

CVE-2017-9476 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.70% probability of exploitation in the next 30 days.

How do I fix CVE-2017-9476?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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Source: NVD / NIST