CVE-2021-21955

Name: CVE-2021-21955
Creator: NVD / NIST
Published: 2021-12-09T16:15:08.253+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.98%

Last modified Jun 17, 2026

CVE-2021-21955 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An authentication bypass vulnerability exists in the get_aes_key_info_by_packetid() function of the home_security binary of Anker Eufy Homebase 2 2.1.6.9h. Generic network sniffing can lead to password recovery. EPSS estimates a 0.98% chance of exploitation in the next 30 days.

Description

An authentication bypass vulnerability exists in the get_aes_key_info_by_packetid() function of the home_security binary of Anker Eufy Homebase 2 2.1.6.9h. Generic network sniffing can lead to password recovery. An attacker can sniff network traffic to trigger this vulnerability.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.98%

57.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Anker	Eufy Homebase 2 Firmware	2.1.6.9h

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1382Exploit, Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1382Exploit, Third Party Advisory

Timeline

Published: Dec 9, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-21955?

How severe is CVE-2021-21955?

CVE-2021-21955 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.98% probability of exploitation in the next 30 days.

How do I fix CVE-2021-21955?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-21955?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST