CVE-2017-9483 The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) devices allows Network Processor (NP) Linux users to obtain root access to the Application Processor...

CriticalCVSS 9.8 EPSS 1.9%

Published: 2017-07-31 06:00
Updated: 2026-06-17 04:28
Exploit status: No public exploit known

Description

The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) devices allows Network Processor (NP) Linux users to obtain root access to the Application Processor (AP) Linux system via shell metacharacters in commands.

Affected products

Product	Affected versions	Fixed in
cisco dpc3939 firmware	= dpc3939-p20-18-v303r20421746-170221a-cmcst	No fix listed

References

github.com exploit third-party-advisory

CVSS v3.0

9.8 Critical

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

All scores (2)

v3.0 9.8 · nvd@nist.gov
v2.0 10.0 · nvd@nist.gov

Weakness & likelihood

EPSS (exploitation probability, 30 days): 1.87% (percentile 79.6)
CWE: CWE-78

Public exploit references

Metadata only. CVERadar never hosts or runs exploit code.

No public exploit references known.