HOMEVULNERABILITIESCVE-2018-21130
HIGH

CVE-2018-21130

CWE-78Published: April 22, 2020· Updated: Jun 17, 2026

8.8
CVSS v3.1

Official Description

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects WAC505 before 5.0.0.17 and WAC510 before 5.0.0.17.

NVD Source

Technical Analysis

CVE-2018-21130 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

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 8.8.

CVSS v3.1 Vector Breakdown

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

Affected Vendors & Products

netgear4 product(s)
wac505 firmwarewac505wac510 firmwarewac510
Source: NVD CPE · 4 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/000060229/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Wireless-Access-Points-PSV-2018-0267
ADVISORYhttps://kb.netgear.com/000060229/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Wireless-Access-Points-PSV-2018-0267

All References (2)

→
https://kb.netgear.com/000060229/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Wireless-Access-Points-PSV-2018-0267Vendor Advisory
→
https://kb.netgear.com/000060229/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Wireless-Access-Points-PSV-2018-0267Vendor Advisory

Quick Facts

CVE IDCVE-2018-21130
CVSS Score8.8 / 10
SeverityHIGH
WeaknessCWE-78
CISA KEVNo
Affected1 vendor(s)
PublishedApr 22, 2020

Related CVEs (CWE-78)

CVE-2008-4304
10.0
CVE-2008-6554
10.0
CVE-2009-20011
10.0
CVE-2008-4796
10.0
CVE-2011-10017
10.0
CVE-2009-4025
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-21130 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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