CVE-2018-21143

Unauthenticated sensitive-information disclosure from adjacent networks

Published Apr 21, 2020 · Updated Aug 5, 2024

Information disclosure in NETGEAR GS810EMX before 1.0.0.5 allows remote attackers on an adjacent network to read sensitive data. NETGEAR has not published the affected component, the exposed data, or the operation that discloses it. Exploitation requires adjacent-network access but no authentication or user interaction, and the published impact is limited to confidentiality.

CVSS severity6.5
Medium
EPSS probability0.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in NETGEAR GS810EMX before 1.0.0.5 allows remote attackers on an adjacent network to read sensitive data. NETGEAR has not published the affected component, the exposed data, or the operation that discloses it. Exploitation requires adjacent-network access but no authentication or user interaction, and the published impact is limited to confidentiality.

The record

CVE
CVE-2018-21143
Published
Apr 21, 2020
Updated
Aug 5, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
Unavailable
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 21, 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5NETGEARCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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