CVE-2021-21954Public exploitNetwork attack vector

Root command execution via unsanitized country code

Published Dec 9, 2021 · Updated Aug 3, 2024

OS command injection in Anker Innovations eufy HomeBase 2 2.1.6.9h allows remote authenticated users to execute commands as root. The home_security binary inserts the packet's country_code value into an iwpriv command without sanitization and passes it directly to a BusyBox shell. The UDP request requires authentication, although separate authentication-bypass flaws can satisfy that gate.

CVSS severity9.9
Critical
EPSS probability2.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Anker Innovations eufy HomeBase 2 2.1.6.9h allows remote authenticated users to execute commands as root. The home_security binary inserts the packet's country_code value into an iwpriv command without sanitization and passes it directly to a BusyBox shell. The UDP request requires authentication, although separate authentication-bypass flaws can satisfy that gate.

The record

CVE
CVE-2021-21954
Published
Dec 9, 2021
Updated
Aug 3, 2024
Vendor
Anker Innovations
Product
eufy HomeBase 2
Classifications
CWE-78, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 9, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Anker Eufy Homebase 2 2.1.6.9h

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Anker Innovations · eufy HomeBase 2version=Anker Eufy Homebase 2 2.1.6.9h

Published CVSS scores

9.9Cisco TalosCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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