CVE-2017-9521

Published: Jul 31, 2017Updated: May 13, 2026 Sources: CVE List NVDNVD-CWE-noinfo

9.8CRITICAL

NVD MITRE

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); Cisco DPC3939B (firmware version dpc3939b-v303r204217-150321a-CMCST); Cisco DPC3941T (firmware version DPC3941_2.5s3_PROD_sey); and Arris TG1682G (eMTA&DOCSIS version 10.0.132.SIP.PC20.CT, software version TG1682_2.2p7s2_PROD_sey) devices allows remote attackers to execute arbitrary code via a specific (but unstated) exposed service. NOTE: the scope of this CVE does NOT include the concept of "Unnecessary Services" in general; the scope is only a single service that is unnecessarily exposed, leading to remote code execution. The details of that service might be disclosed at a later date.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:HAvailability

High

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Weaknesses

NVD-CWE-noinfo

Affected Products

cisco

commercial·USaka cisco systems, cisco systems inc.

dpc3939 firmware

Networking Infrastructure

dpc3939b firmware

Networking Infrastructure

dpc3941t firmware

Networking Infrastructure

commscope

commercialaka arris, ruckus iot

arris tg1682g firmwareEmbeddedFirmware

Networking Infrastructure / router-switch

and 1 more affected products View all →

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details

Workaround Available

Is your org exposed to CVE-2017-9521?Request an assessment to establish which checks are appropriate for your systems. Check my exposure

References

https://github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-32.unnecessary-services.txt

github.com

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