No exploitation reported

CVE-2017-9488

No exploitation reported by the sources we read.

Published2017-07-31
WeaknessCWE-798

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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 access the web UI by establishing a session to the wan0 WAN IPv6 address and then entering unspecified hardcoded credentials. This wan0 interface cannot be accessed from the public Internet.

Timeline

dates in UTC

2017-07-3103:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2017-9488?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-9488?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Cisco dpc3939 firmwareversion to verify

Branch	Affected	Fixed in	Source
—	= dpc3939-p20-18-v303r20421746-170221a-cmcst	no fix published	NVD

Cisco dpc3941t firmwareversion to verify

Branch	Affected	Fixed in	Source
—	= dpc3941_2.5s3_prod_sey	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.08.8read 2026-10-23
NVDCVSS 2.05.8read 2026-10-23
NVDweakness (CWE)CWE-798read 2026-10-23
FIRST EPSSEPSS score1.3 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2017-07-31
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2017-9488?

Is CVE-2017-9488 actively exploited?

Active exploitation of CVE-2017-9488 has not been confirmed. Its EPSS score was 1.3% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-9488?

CVE-2017-9488 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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