How severe is CVE-2021-21954?

CVE-2021-21954 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-21954 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-21954?

CVE-2021-21954 affects Anker Eufy Homebase 2 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-21954?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2021-21954 published?

CVE-2021-21954 was published on 2021-12-09 and last updated on 2026-06-17.

CVE-2021-21954

CVE-2021-21954 is a critical-severity vulnerability in Anker Eufy Homebase 2 Firmware with a CVSS 3.x base score of 9.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.9)
CVSS v2: 9.0
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Anker Eufy Homebase 2 Firmware
Published: 2021-12-09
Last modified: 2026-06-17

Description

A command execution vulnerability exists in the wifi_country_code_update functionality of the home_security binary of Anker Eufy Homebase 2 2.1.6.9h. A specially-crafted set of network packets can lead to arbitrary command execution.

Frequently asked questions

What is CVE-2021-21954?: A command execution vulnerability exists in the wifi_country_code_update functionality of the home_security binary of Anker Eufy Homebase 2 2.1.6.9h. A specially-crafted set of network packets can lead to arbitrary command execution.
How severe is CVE-2021-21954?: CVE-2021-21954 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-21954 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-21954?: CVE-2021-21954 affects Anker Eufy Homebase 2 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-21954?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-21954 published?: CVE-2021-21954 was published on 2021-12-09 and last updated on 2026-06-17.

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1381

Affected products (1)

cpe:2.3:o:anker:eufy_homebase_2_firmware:2.1.6.9h:*:*:*:*:*:*:*

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