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CVE-2021-29077

28
FAUCET Score

CVE-2021-29077 describes a critical command injection vulnerability affecting various NETGEAR Orbi mesh WiFi systems, including models like RBW30, RBS40V, and the RBK/RBR/RBS 850 and 750 series, before specific firmware versions. This flaw allows an unauthenticated attacker on the adjacent network to execute arbitrary commands with high privileges, leading to complete compromise of the affected device. While rated as critical with a CVSS score of 9.6, there is currently no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this vulnerability. Organizations using affected NETGEAR devices should prioritize updating to the patched firmware versions to mitigate this risk.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.6.2.2CPE matchmatch criteria
cpe:2.3:o:netgear:rbw30_firmware:*:*:*:*:*:*:*:*
< 2.6.2.4CPE matchmatch criteria
cpe:2.3:o:netgear:rbs40v_firmware:*:*:*:*:*:*:*:*
< 3.2.17.12CPE matchmatch criteria
cpe:2.3:o:netgear:rbk852_firmware:*:*:*:*:*:*:*:*
< 3.2.17.12CPE matchmatch criteria
cpe:2.3:o:netgear:rbk853_firmware:*:*:*:*:*:*:*:*
< 3.2.17.12CPE matchmatch criteria
cpe:2.3:o:netgear:rbk854_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.6CRITICAL

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.81%
Probability of exploitation in next 30 days
EPSS Percentile
53.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0081 is in the 67th percentile among its peer group of 64 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.4 Bluesky, 0.2 Mastodon, and 1.3 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 / 000063016/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-WiFi-Systems-PSV-2020-0486
Vendor Advisory