CISA KEV · Known exploitedHigh

CVE-2017-6334

NETGEAR DGN2200 Devices

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.

CVSS
8.8
EPSS
72.2%
99.4% percentile
CISA KEV
Listed
Published
2017.03.06
PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV
Exploit probability72.2%
Technical severityCVSS 8.8

Vulnerability overview

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 product and versions

Product
NETGEAR DGN2200 Devices
Affected versions
<= 10.0.0.50
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
CISA required action

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

Due date: 2022.04.15
  1. 1
    Identify

    Confirm that NETGEAR DGN2200 Devices and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-78
KEV added
2022.03.25
Ransomware use
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