What is CVE-2017-6334?

CVE-2017-6334 is a high-severity vulnerability in NETGEAR Dgn2200 Series Firmware, classified under OS Command Injection. CVSS score: 8.8/10. Published 2017-03-06.

How severe is CVE-2017-6334?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2017-6334 known to be exploited?

Yes. CVE-2017-6334 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-25), indicating it is being actively exploited. 5 public proof-of-concept repositories are indexed.

RCE in NETGEAR Dgn2200 Series Firmware

CVE-2017-6334

dnslookup.cgi on NETGEAR DGN2200 devices with firmware through 10.0.0.50 allows remote authenticated users to execute arbitrary OS commands via shell metacharacters in the host_name field of an HTTP POST request, a different vulnerability than CVE-2017-6077.

Vulnerability class: Command Injection (OS Command Injection)

Published 2017-03-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.726 (99.4th percentile), scored 2026-10-16.

High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.726 · newest: 0.726 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-78 — OS Command Injection

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-03-25. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-04-15.

Required action: The impacted product is end-of-life and should be disconnected if still in use.

Public proof-of-concept exploits

References

www.securityfocus.com/bid/96463 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
www.exploit-db.com/exploits/41459/ (Exploit, VDB Entry, Third Party Advisory, exploit)
www.exploit-db.com/exploits/41472/ (Exploit, VDB Entry, Third Party Advisory, exploit)
www.exploit-db.com/exploits/42257/ (Exploit, VDB Entry, Third Party Advisory, exploit)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2017-6334?: CVE-2017-6334 is a high-severity vulnerability in NETGEAR Dgn2200 Series Firmware, classified under OS Command Injection. CVSS score: 8.8/10. Published 2017-03-06.
How severe is CVE-2017-6334?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2017-6334 known to be exploited?: Yes. CVE-2017-6334 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-25), indicating it is being actively exploited. 5 public proof-of-concept repositories are indexed.