CVE-2014-8653: Cross-site scripting (XSS) vulnerability in Compal Broadband Networks (CBN) CH6640E and CG6640E Wireless Gatew

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MEDIUM 4.3MITIGATEMITIGATEMITIGATE

CVE-2014-8653 is a medium-severity flaw (CVSS 4.3) affecting firmware, cg6640e wireless gateway, ch664oe wireless gateway. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in Compal Broadband Networks (CBN) CH6640E and CG6640E Wireless Gateway 1.0 with firmware CH6640-3.5.11.7-NOSH allows remote attackers to inject arbitrary web script or HTML via the userData cookie.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	3.5% (top 11%)
CISA exploited list	No
Weakness	CWE-79
Published	2014-11-06
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: compal broadband networks

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2014-11-06 15:55 UTCPublished CVE record published
2026-06-17 00:17 UTCUpdated Record last modified

compal broadband networks firmware MITIGATE

Affected: ch6640-3.5.11.7-nosh

Fixed in: no fixed release known

Safe to downgrade to: a release before ch6640-3.5.11.7-nosh

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

compal broadband networks cg6640e wireless gateway MITIGATE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

Firmware

Install the latest firmware from the vendor advisory; if none, apply the vendor workaround.

compal broadband networks ch664oe wireless gateway MITIGATE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

Firmware

Install the latest firmware from the vendor advisory; if none, apply the vendor workaround.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: CBN CH6640E/CG6640E Wireless Gateway Series - Multiple Vulnerabilities

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2014-8653?

firmware: mitigate or apply the listed mitigation; cg6640e wireless gateway: mitigate or apply the listed mitigation; ch664oe wireless gateway: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2014-8653 being exploited?

CVE-2014-8653 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2014-8653 affect?

CVE-2014-8653 affects firmware, cg6640e wireless gateway, ch664oe wireless gateway. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in Compal Broadband Networks (CBN) CH6640E and CG6640E Wireless Gateway 1.0 with firmware CH6640-3.5.11.7-NOSH allows remote attackers to inject arbitrary web script or HTML via the userData cookie.

How urgent is CVE-2014-8653?

Priority 42/100. Public exploit reference

Related CVEs

CVE-2016-6257 MEDIUM 6.5 MITIGATE UPGRADE The firmware in Lenovo Ultraslim dongles, as used with Lenovo Liteon SK-8861, Ultraslim Wireless, and Silver S
CVE-2014-8657 MEDIUM 5.0 DOWNGRADE MITIGATE The Compal Broadband Networks (CBN) CH6640E and CG6640E Wireless Gateway 1.0 with firmware CH6640-3.5.11.7-NOS
CVE-2014-8656 HIGH 10.0 DOWNGRADE MITIGATE The Compal Broadband Networks (CBN) CH6640E and CG6640E Wireless Gateway 1.0 with firmware CH6640-3.5.11.7-NOS
CVE-2014-8655 MEDIUM 5.0 DOWNGRADE MITIGATE The Compal Broadband Networks (CBN) CH6640E and CG6640E Wireless Gateway 1.0 with firmware CH6640-3.5.11.7-NOS
CVE-2014-8654 MEDIUM 6.8 DOWNGRADE MITIGATE Multiple cross-site request forgery (CSRF) vulnerabilities in Compal Broadband Networks (CBN) CH6640E and CG66

References

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