CVE-2017-18851

Authenticated command execution via undisclosed injection flaw

Published Apr 20, 2020 · Updated Aug 5, 2024

Command injection in affected NETGEAR D8500, R6100, R6400, R6400v2, R8300, and R8500 firmware allows attackers to execute commands. NETGEAR has not published the affected interface, parameter, or command-construction operation that mishandles attacker-controlled input. Administrative access is required on D8500 1.0.3.28 and earlier, R6100 1.0.1.12 and earlier, R6400 1.0.1.22 and earlier, R6400v2 1.0.2.18 and earlier, and R8300 or R8500 1.0.2.94 and earlier.

CVSS severity6.7
Medium
EPSS probability0.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in affected NETGEAR D8500, R6100, R6400, R6400v2, R8300, and R8500 firmware allows attackers to execute commands. NETGEAR has not published the affected interface, parameter, or command-construction operation that mishandles attacker-controlled input. Administrative access is required on D8500 1.0.3.28 and earlier, R6100 1.0.1.12 and earlier, R6400 1.0.1.22 and earlier, R6400v2 1.0.2.18 and earlier, and R8300 or R8500 1.0.2.94 and earlier.

The record

CVE
CVE-2017-18851
Published
Apr 20, 2020
Updated
Aug 5, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-74, T1059
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Apr 20, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.7NETGEARCVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.7NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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