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CVE-2017-9521

CRITICAL
9.8
CVSS Score
Published: July 31, 2017 at 03:00 AM UTC
Updated: June 17, 2026 at 01:28 AM UTC
6 products affected across 2 vendorsArris TG1682G FirmwareDPC3941T FirmwareDpc3939

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Severity
CRITICAL9.8
Exploit prediction
EPSS 3%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

DPC3941T Firmware· Cisco
95%
dpc3941_2.5s3_prod_sey
cisco-dpc3941t (same device)
Arris TG1682G Firmware· Commscope
95%
10.0.132.sip.pc20.cttg1682_2.2p7s2_prod_sey
commscope-arris-tg1682g (same device)
Dpc3939· Ciscodevice
80%
All versions
Dpc3939B· Ciscodevice
80%
All versions
Dpc3941T· Ciscodevice
80%
All versions
Arris Tg1682G· Commscopedevice
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCExploitMitigationThird Party Advisory
Source: [email protected]
https://github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-32.unnecessary-services.txt

CVSS

9.8CRITICAL[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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