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CVE-2021-20167

40
FAUCET Score

CVE-2021-20167 is a high-severity command injection vulnerability affecting Netgear RAX43 firmware version 1.0.3.96. An authenticated attacker on the local network can exploit a flaw in the readycloud cgi application's name parameter to execute arbitrary commands, leading to full compromise of the device. While not listed in CISA's KEV catalog, exploit code is publicly available via Nuclei templates, indicating a potential for active exploitation. Despite this, there is no significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
1.0.3.96CPE matchmatch criteria
cpe:2.3:o:netgear:rax43_firmware:1.0.3.96:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.0HIGH

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.1
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
7.78%
Probability of exploitation in next 30 days
EPSS Percentile
94.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2021-20167 · Jan 11, 2022
This CVE's current EPSS score of 0.0778 is in the 93rd percentile among its peer group of 552 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (3)

giteavendor investigatingvia llm_extracted
meterspherevendor investigatingvia llm_extracted
qnapvendor investigatingvia llm_extracted

Vendor Advisories (3)

giteallm-gitea-41f95e9646256595CRITICAL

Netgear Nighthawk RAX43 Multiple Vulnerabilities

Dec 30, 2021
qnapllm-qnap-67f935ea702522d7CRITICAL

Netgear Nighthawk RAX43 Multiple Vulnerabilities

Dec 30, 2021
meterspherellm-metersphere-c2099e1c7a05a5afCRITICAL

Netgear Nighthawk RAX43 Multiple Vulnerabilities

Dec 30, 2021

References

tenable.com / security/research/tra-2021-55
Third Party Advisory