CVE-2017-18823

Local switch modification and service interruption

Published Apr 20, 2020 · Updated Aug 5, 2024

Security misconfiguration in NETGEAR M4200 and M4300 switches before 12.0.2.15 allows local users to alter operation and interrupt service. NETGEAR has not disclosed the affected setting, its code or configuration locus, or the incorrect operation that leaves the security setting misconfigured. Exploitation requires local access, and the published vendor assessment limits the consequence to integrity and availability with no reported data disclosure.

CVSS severity7.7
High
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Security misconfiguration in NETGEAR M4200 and M4300 switches before 12.0.2.15 allows local users to alter operation and interrupt service. NETGEAR has not disclosed the affected setting, its code or configuration locus, or the incorrect operation that leaves the security setting misconfigured. Exploitation requires local access, and the published vendor assessment limits the consequence to integrity and availability with no reported data disclosure.

The record

CVE
CVE-2017-18823
Published
Apr 20, 2020
Updated
Aug 5, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
Unavailable
Attack vector
local
Privileges
unauthenticated

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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.7NETGEARCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
2.1NIST NVDAV:L/AC:L/Au:N/C:N/I:P/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.

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

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo