What is CVE-2017-9482?

CVE-2017-9482 is a critical-severity vulnerability in Cisco Dpc3939, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 9.8/10. Published 2017-07-31.

How severe is CVE-2017-9482?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Cisco Dpc3939

CVE-2017-9482

The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) devices allows remote attackers to obtain root access to the Network Processor (NP) Linux system by enabling a TELNET daemon (through CVE-2017-9479 exploitation) and then establishing a TELNET session.

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

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.025 (84.3th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000

Affected products

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

Weakness classification (CWE)

CWE-732 — Incorrect Permission Assignment for Critical Resource

References

github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-25.ato… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2017-9482?: CVE-2017-9482 is a critical-severity vulnerability in Cisco Dpc3939, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 9.8/10. Published 2017-07-31.
How severe is CVE-2017-9482?: Critical severity. CVSS v3 base score is 9.8 out of 10.