CVE-2017-9487

MEDIUM

Comcast Cisco DPC3939-3941T - Info Disclosure

Title source: llm

Description

The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) and DPC3941T (firmware version DPC3941_2.5s3_PROD_sey) devices allows remote attackers to discover a WAN IPv6 IP address by leveraging knowledge of the CM MAC address.

References (1)

[Exploit, Third Party Advisory] https://github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-30.wan0-ipv6-cm-mac.txt

View Exploit ZIP pw:eip

Scores

CVSS v3 5.9

EPSS 0.0032

EPSS Percentile 54.4%

Attack Vector NETWORK

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Details

CWE

CWE-200

Status published

Products (3)

cisco/dpc3939_firmware

cisco/dpc3941t_firmware

n/a/n/a

Published Jul 31, 2017

Tracked Since Feb 18, 2026