How severe is CVE-2021-21941?

CVE-2021-21941 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-21941 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-21941?

CVE-2021-21941 affects Anker Eufy Homebase 2 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-21941?

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-2021-21941 published?

CVE-2021-21941 was published on 2021-10-12 and last updated on 2026-06-17.

CVE-2021-21941

CVE-2021-21941 is a critical-severity vulnerability in Anker Eufy Homebase 2 Firmware with a CVSS 3.x base score of 9.0. 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-416.

Key facts

Severity: Critical (CVSS 3.x base score 9.0)
CVSS v2: 6.8
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-416
Affected product: Anker Eufy Homebase 2 Firmware
Published: 2021-10-12
Last modified: 2026-06-17

Description

A use-after-free vulnerability exists in the pushMuxer CreatePushThread functionality of Anker Eufy Homebase 2 2.1.6.9h. A specially-crafted set of network packets can lead to remote code execution.

Frequently asked questions

What is CVE-2021-21941?: A use-after-free vulnerability exists in the pushMuxer CreatePushThread functionality of Anker Eufy Homebase 2 2.1.6.9h. A specially-crafted set of network packets can lead to remote code execution.
How severe is CVE-2021-21941?: CVE-2021-21941 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-21941 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-21941?: CVE-2021-21941 affects Anker Eufy Homebase 2 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-21941?: 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-2021-21941 published?: CVE-2021-21941 was published on 2021-10-12 and last updated on 2026-06-17.

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1370

Affected products (1)

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

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