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CVE-2017-9484 Details

Description

The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421733-160420a-CMCST) and DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) devices allows remote attackers to discover a CM MAC address by sniffing Wi-Fi traffic and performing simple arithmetic calculations.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-27.ipv6-cm-mac-leak.txt	CVE	ExploitThird Party Advisory
https://github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-27.ipv6-cm-mac-leak.txt	[email protected]	ExploitThird Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-200	Exposure of Sensitive Information to an Unauthorized Actor	[email protected]

Affected Products

Product	Versions
cisco dpc3939 firmware	dpc3939-p20-18-v303r20421746-170221a-cmcst dpc3939-p20-18-v303r20421733-160420a-cmcst
CPE cpe:2.3:o:cisco:dpc3939_firmware:dpc3939-p20-18-v303r20421746-170221a-cmcst:::::::* cpe:2.3:o:cisco:dpc3939_firmware:dpc3939-p20-18-v303r20421733-160420a-cmcst:::::::* Remediation No remediation found in references.
cisco dpc3939	All versions
CPE cpe:2.3:h:cisco:dpc3939:-:::::::* Remediation No remediation found in references.

Change History

5 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
May 13, 2026	CVE Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Aug 2, 2017	Initial Analysis	[email protected]