CVE-2018-21108

Authenticated command injection via unspecified interface

Published Apr 23, 2020 · Updated Aug 5, 2024

Command injection in NETGEAR R7800 firmware before 1.0.2.60 allows remote authenticated users to execute commands via an unspecified interface. The vendor advisory does not identify the affected endpoint or explain how untrusted input reaches a command interpreter. Authentication to the router is required, and successful exploitation can alter device confidentiality, integrity, and availability through command execution.

CVSS severity8.0
High
EPSS probability0.85%
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 NETGEAR R7800 firmware before 1.0.2.60 allows remote authenticated users to execute commands via an unspecified interface. The vendor advisory does not identify the affected endpoint or explain how untrusted input reaches a command interpreter. Authentication to the router is required, and successful exploitation can alter device confidentiality, integrity, and availability through command execution.

The record

CVE
CVE-2018-21108
Published
Apr 23, 2020
Updated
Aug 5, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1059
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 23, 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 vectoradjacent
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.0NETGEARCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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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