CVE-2014-8655

Compal Broadband Networks CH6640E-CH6640-3.5.11.7-NOSH - Auth Bypass

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2014-8655. PoCs published by LiquidWorm.

AI-analyzed exploit summary The exploit demonstrates multiple vulnerabilities in CBN CH6640E/CG6640E Wireless Gateway, including authorization bypass via cookie manipulation, DoS via a specific GET request, stored XSS via cookie injection, and CSRF for various configuration changes. The PoC provides clear examples of exploit URLs and payloads.

Description

The Compal Broadband Networks (CBN) CH6640E and CG6640E Wireless Gateway 1.0 with firmware CH6640-3.5.11.7-NOSH allows remote attackers to bypass authentication and obtain sensitive information via an (a) admin or a (b) root value in the userData cookie in a request to (1) CmgwWirelessSecurity.xml, (2) DocsisConfigFile.xml, or (3) CmgwBasicSetup.xml in xml/ or (4) basicDDNS.html, (5) basicLanUsers.html, or (6) rootDesc.xml.

Exploits (1)

exploitdb WORKING POC
by LiquidWorm · textwebappshardware
https://www.exploit-db.com/exploits/35075

The exploit demonstrates multiple vulnerabilities in CBN CH6640E/CG6640E Wireless Gateway, including authorization bypass via cookie manipulation, DoS via a specific GET request, stored XSS via cookie injection, and CSRF for various configuration changes. The PoC provides clear examples of exploit URLs and payloads.

Classification
Working Poc 90%
Attack Type
Auth Bypass | Dos | Xss | Csrf | Info Leak
Complexity
Trivial
Reliability
Reliable
Target: Compal Broadband Networks CH6640E/CG6640E Wireless Gateway (Firmware CH6640-3.5.11.7-NOSH)
No auth needed
Prerequisites: Network access to the target device · Ability to send HTTP requests to the device
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (5)

Core 5
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/70762
Exploit exploit x_refsource_exploit-db
http://www.exploit-db.com/exploits/35075
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/98331
Third Party Advisory, VDB Entry vdb-entry x_refsource_osvdb
http://osvdb.org/show/osvdb/113837

Scores

EPSS 0.0738
EPSS Percentile 93.6%

Details

CWE
CWE-264
Status published
Products (3)
compal_broadband_networks/cg6640e_wireless_gateway 1.0
compal_broadband_networks/ch664oe_wireless_gateway 1.0
compal_broadband_networks/firmware ch6640-3.5.11.7-nosh
Published Nov 06, 2014
Tracked Since Feb 18, 2026