Which products and versions are affected by CVE-2017-6334?

Affected: Dgn2200 Series Firmware (Netgear). The full list is in the CVE brief.

Is CVE-2017-6334 being exploited in the wild?

It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jan 8, 2020.

Is CVE-2017-6334 in the CISA KEV catalog?

Yes. It was added on Mar 25, 2022 with a federal remediation due date of Apr 15, 2022.

Is there a public exploit for CVE-2017-6334?

Public exploit code is available.

Is there a fix for CVE-2017-6334?

Fixed versions are available, including Dgn2200 Series Firmware 10.0.0.50.

How urgently should CVE-2017-6334 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2017-6334

HighExploitedPublic exploit

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.

Published Mar 5, 2017 · Updated Apr 21, 2026

Key Facts

Patch immediately

CVE-2017-6334 is a high-severity vulnerability (CVSS 8.8 v3.1) affecting Dgn2200 Series Firmware (Netgear).
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jan 8, 2020. Public exploit code is available.
EPSS estimates a 73% probability of exploitation in the next 30 days.
Fixed versions are available, including Dgn2200 Series Firmware 10.0.0.50.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

8.8

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

73%

Higher than 99.4% of all scored CVEs

Exploited in the wild

Yes

4 catalog listings

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2017-6334 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
CISA KEV	Mar 25, 2022	Apr 15, 2022	Not reported
Industry KEV feed	Jan 8, 2020	Apr 15, 2022	Not reported
CIRCL KEV	Mar 25, 2022	Apr 15, 2022	Not reported
ENISA EUVD	Mar 25, 2022	n/a	Not reported

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

Affected Products

1 affected entries in total

Product	Affected versions	Fixed in
Dgn2200 Series FirmwareNetgear	See advisory	10.0.0.50

Patched Releases

Dgn2200 Series Firmware

10.0.0.50

Timeline

Publicly disclosed
Mar 5, 2017
Added to Industry KEV feed
Jan 8, 2020
Added to CISA KEV
Mar 25, 2022
Added to CIRCL KEV
Mar 25, 2022
Added to ENISA EUVD
Mar 25, 2022
Last updated
Apr 21, 2026

Weakness Type

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

References

14 more references in the full CVE brief

FAQ

Common Questions.

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.
Affected: Dgn2200 Series Firmware (Netgear). The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jan 8, 2020.
Yes. It was added on Mar 25, 2022 with a federal remediation due date of Apr 15, 2022.
Public exploit code is available.
Fixed versions are available, including Dgn2200 Series Firmware 10.0.0.50.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Is CVE-2017-6334 Running On Your Attack Surface?

Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.