HOMEVULNERABILITIESCVE-2017-18858
CRITICAL

CVE-2017-18858

CWE-78Published: April 28, 2020· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

Certain NETGEAR devices are affected by command execution. This affects M4200-10MG-POE+ 12.0.2.11 and earlier, M4300-28G 12.0.2.11 and earlier, M4300-52G 12.0.2.11 and earlier, M4300-28G-POE+ 12.0.2.11 and earlier, M4300-52G-POE+ 12.0.2.11 and earlier, M4300-8X8F 12.0.2.11 and earlier, M4300-12X12F 12.0.2.11 and earlier, M4300-24X24F 12.0.2.11 and earlier, M4300-24X 12.0.2.11 and earlier, and M4300-48X 12.0.2.11 and earlier.

NVD Source

Technical Analysis

CVE-2017-18858 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

netgear20 product(s)
m4200-10mg-poe\+ firmwarem4200-10mg-poe\+m4300-28g firmwarem4300-28gm4300-52g firmwarem4300-52gm4300-28g-poe\+ firmwarem4300-28g-poe\+m4300-52g-poe\+ firmwarem4300-52g-poe\+m4300-8x8f firmwarem4300-8x8f+8
Source: NVD CPE · 20 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://kb.netgear.com/000038655/Security-Advisory-for-Unauthenticated-Remote-Code-Execution-on-M4200-and-M4300-PSV-2017-1971
ADVISORYhttps://kb.netgear.com/000038655/Security-Advisory-for-Unauthenticated-Remote-Code-Execution-on-M4200-and-M4300-PSV-2017-1971

All References (2)

→
https://kb.netgear.com/000038655/Security-Advisory-for-Unauthenticated-Remote-Code-Execution-on-M4200-and-M4300-PSV-2017-1971Vendor Advisory
→
https://kb.netgear.com/000038655/Security-Advisory-for-Unauthenticated-Remote-Code-Execution-on-M4200-and-M4300-PSV-2017-1971Vendor Advisory

Quick Facts

CVE IDCVE-2017-18858
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-78
CISA KEVNo
Affected1 vendor(s)
PublishedApr 28, 2020

Related CVEs (CWE-78)

CVE-2021-31891
10.0
CVE-2022-33192
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CVE-2026-6349
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CVE-2021-33032
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CVE-2020-26301
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CVE-2022-33193
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Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2017-18858 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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