CVE-2017-9479

Name: CVE-2017-9479
Creator: NVD / NIST
Published: 2017-07-31T03:29:00.333+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.28%

Last modified Jun 17, 2026

CVE-2017-9479 is a vulnerability of currently unknown severity. The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) devices allows remote attackers to execute arbitrary commands as root by leveraging local network access and connecting to the syseventd server, as demonstrated by copying configuration data into a readable filesystem.. EPSS estimates a 3.28% chance of exploitation in the next 30 days.

Description

The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) devices allows remote attackers to execute arbitrary commands as root by leveraging local network access and connecting to the syseventd server, as demonstrated by copying configuration data into a readable filesystem.

Metrics

EPSS Probability

3.28%

86.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-732

Affected Software

Vendor	Product	Versions
Cisco	Dpc3939 Firmware	dpc3939-p20-18-v303r20421746-170221a-cmcst

References

https://github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-22.syseventd.txtExploit, Third Party Advisory
https://github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-22.syseventd.txtExploit, Third Party Advisory

Timeline

Published: Jul 31, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-9479?

How severe is CVE-2017-9479?

Severity scoring for CVE-2017-9479 is pending analysis. The EPSS model estimates a 3.28% probability of exploitation in the next 30 days.

How do I fix CVE-2017-9479?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-9479?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST