HOMEVULNERABILITIESCVE-2014-8657
MEDIUMPOC

CVE-2014-8657

CWE-16Published: November 6, 2014· Updated: Jun 17, 2026

5.0
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 allows remote attackers to cause a denial of service (disconnect all wifi clients) via a request to wirelessChannelStatus.html.

NVD Source

Technical Analysis

CVE-2014-8657 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-2014-8657. 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
ConfidentialityNone
IntegrityNone
AvailabilityP
AV:N/AC:L/Au:N/C:N/I:N/A:P

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 (10)

→
http://osvdb.org/show/osvdb/113838
→
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
→
https://exchange.xforce.ibmcloud.com/vulnerabilities/98330
→
http://osvdb.org/show/osvdb/113838
→
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
→
https://exchange.xforce.ibmcloud.com/vulnerabilities/98330

Quick Facts

CVE IDCVE-2014-8657
CVSS Score5.0 / 10
SeverityMEDIUM
WeaknessCWE-16
CISA KEVNo
ExploitPOC
Affected1 vendor(s)
PublishedNov 6, 2014

Related CVEs (CWE-16)

CVE-2010-2977
10.0
CVE-2010-4586
10.0
CVE-2008-4212
10.0
CVE-2010-2276
10.0
CVE-2008-1392
10.0
CVE-2013-4316
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2014-8657 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.
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