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Public proof of concept

CVE-2021-20167

A public proof of concept exists; no exploitation attested.

  • Published2021-12-30
  • WeaknessCWE-77

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Netgear RAX43 version 1.0.3.96 contains a command injection vulnerability. The readycloud cgi application is vulnerable to command injection in the name parameter.

Timeline

dates in UTC
  1. 2021-12-3022:15CVE publishedNVD

Versions per branch

NVD
Netgear rax43 firmwareversion to verify
BranchAffectedFixed in
1.0= 1.0.3.96no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

read 2026-11-04 22:56 UTC
Nuclei template
available
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2021-12-30
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2021-20167?

Netgear RAX43 version 1.0.3.96 contains a command injection vulnerability. The readycloud cgi application is vulnerable to command injection in the name parameter.

Is CVE-2021-20167 actively exploited?

Active exploitation of CVE-2021-20167 has not been confirmed. Its EPSS score was 7.0% on 2026-11-04, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-20167?

CVE-2021-20167 has a CVSS v3 base score of 8 (HIGH severity), with vector string CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record