HOMEVULNERABILITIESCVE-2014-8656
CRITICALPOC

CVE-2014-8656

CWE-255Published: November 6, 2014· Updated: Jun 17, 2026

10.0
CVSS v3.1

Official Description

The Compal Broadband Networks (CBN) CH6640E and CG6640E Wireless Gateway 1.0 with firmware CH6640-3.5.11.7-NOSH have a default password of (1) admin for the admin account and (2) compalbn for the root account, which makes it easier for remote attackers to obtain access to certain sensitive information via unspecified vectors.

NVD Source

Technical Analysis

CVE-2014-8656 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A proof-of-concept (PoC) exploit exists for CVE-2014-8656. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityC
IntegrityC
AvailabilityC
AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected Vendors & Products

compal_broadband_networks3 product(s)
firmwarecg6640e wireless gatewaych664oe wireless gateway
Source: NVD CPE · 3 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

All References (8)

→
http://osvdb.org/show/osvdb/113836
→
http://packetstormsecurity.com/files/128860/CBN-CH6640E-CG6640E-Wireless-Gateway-XSS-CSRF-DoS-Disclosure.htmlExploit
→
http://www.exploit-db.com/exploits/35075Exploit
→
http://www.zeroscience.mk/en/vulnerabilities/ZSL-2014-5203.phpExploit
→
http://osvdb.org/show/osvdb/113836
→
http://packetstormsecurity.com/files/128860/CBN-CH6640E-CG6640E-Wireless-Gateway-XSS-CSRF-DoS-Disclosure.htmlExploit
→
http://www.exploit-db.com/exploits/35075Exploit
→
http://www.zeroscience.mk/en/vulnerabilities/ZSL-2014-5203.phpExploit

Quick Facts

CVE IDCVE-2014-8656
CVSS Score10.0 / 10
SeverityCRITICAL
WeaknessCWE-255
CISA KEVNo
ExploitPOC
Affected1 vendor(s)
PublishedNov 6, 2014

Related CVEs (CWE-255)

CVE-2010-4233
10.0
CVE-2013-2579
10.0
CVE-2013-5755
10.0
CVE-2014-0683
10.0
CVE-2011-0885
10.0
CVE-2009-4188
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2014-8656 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2014-8656·NVD