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CVE-2018-21164

23
FAUCET Score

CVE-2018-21164 describes a command injection vulnerability in specific NETGEAR R6220 (before 1.1.0.64) and WNDR3700v5 (before 1.1.0.54) router firmware versions, allowing an authenticated user to execute arbitrary commands. With a CVSS score of 7.2 (High), this vulnerability is easily exploitable over the network with low attack complexity, leading to high impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.1.0.64CPE matchmatch criteria
cpe:2.3:o:netgear:r6220_firmware:*:*:*:*:*:*:*:*
< 1.1.0.54CPE matchmatch criteria
cpe:2.3:o:netgear:wndr3700_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.8MEDIUM

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.60%
Probability of exploitation in next 30 days
EPSS Percentile
73.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0160 is in the 67th percentile among its peer group of 5,537 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

kb.netgear.com / 000055195/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Routers-PSV-2017-3171
Vendor Advisory