What is CVE-2017-9480?

CVE-2017-9480 is a medium-severity vulnerability in Cisco Dpc3939, classified under Information Disclosure. CVSS score: 5.5/10. Published 2017-07-31.

How severe is CVE-2017-9480?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Information disclosure in Cisco Dpc3939

CVE-2017-9480

The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) devices allows local users (e.g., users who have command access as a consequence of CVE-2017-9479 exploitation) to read arbitrary files via UPnP access to /var/IGD/.

Vulnerability class: Information Disclosure

Published 2017-07-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (32.0th percentile), scored 2026-10-07.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Cisco Dpc3939
Cisco Dpc3939 Firmware — versions dpc3939-p20-18-v303r20421746-170221a-cmcst

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-23.upn… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2017-9480?: CVE-2017-9480 is a medium-severity vulnerability in Cisco Dpc3939, classified under Information Disclosure. CVSS score: 5.5/10. Published 2017-07-31.
How severe is CVE-2017-9480?: Medium severity. CVSS v3 base score is 5.5 out of 10.