CVE-2019-6279: ChinaMobile PLC Wireless Router GPN2.4P21-C-CN devices with firmware W2001EN-00 have an Incorrect Access Contr

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HIGH 8.8MITIGATE

CVE-2019-6279 is a high-severity flaw (CVSS 8.8) affecting gpn2.4p21-c-cn firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ChinaMobile PLC Wireless Router GPN2.4P21-C-CN devices with firmware W2001EN-00 have an Incorrect Access Control vulnerability via the cgi-bin/webproc?getpage=html/index.html subpage=wlsecurity URI, allowing an Attacker to change the Wireless Security Password.

Why this priority

High severity
EPSS top 5%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	7.5% (top 5%)
CISA exploited list	No
Published	2019-03-21
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: chinamobileltd

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

Am I affected?

Timeline

2019-03-21 16:01 UTCPublished CVE record published
2026-06-17 02:38 UTCUpdated Record last modified

chinamobileltd gpn2.4p21-c-cn firmware MITIGATE

Affected: w2001en-00

Fixed in: no fixed release known

Safe to downgrade to: a release before w2001en-00

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.

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: PLC Wireless Router GPN2.4P21-C-CN - Incorrect Access Control

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-2019-6279?

gpn2.4p21-c-cn firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2019-6279 being exploited?

CVE-2019-6279 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-2019-6279 affect?

CVE-2019-6279 affects gpn2.4p21-c-cn firmware. Severity is high (CVSS 8.8). ChinaMobile PLC Wireless Router GPN2.4P21-C-CN devices with firmware W2001EN-00 have an Incorrect Access Control vulnerability via the cgi-bin/webproc?getpage=html/index.html subpage=wlsecurity URI, allowing an Attacker to change the Wirele

How urgent is CVE-2019-6279?

Priority 59/100. High severity; EPSS top 5%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2020-18331 CRITICAL 9.1 MITIGATE Directory traversal vulnerability in ChinaMobile PLC Wireless Router model GPN2.4P21-C-CN running the firmware
CVE-2020-18330 CRITICAL 9.1 MITIGATE An issue was discovered in the default configuration of ChinaMobile PLC Wireless Router model GPN2.4P21-C-CN r
CVE-2019-6282 HIGH 8.8 MITIGATE ChinaMobile PLC Wireless Router GPN2.4P21-C-CN devices with firmware W2001EN-00 have CSRF via the cgi-bin/webp
CVE-2019-1010136 HIGH 7.5 MITIGATE ChinaMobile GPN2.4P21-C-CN W2001EN-00 is affected by: Incorrect Access Control - Unauthenticated Remote Reboot

References

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