Is CVE-2021-21955 actively exploited?

No active exploitation of CVE-2021-21955 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-21955 be exploited remotely?

Yes. CVE-2021-21955 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-21955?

CVE-2021-21955 has a CVSS score of 7.5 (HIGH).

HOME VULNERABILITIESCVE-2021-21955

HIGH

CVE-2021-21955

CWE-334Published: December 9, 2021· Updated: Jun 17, 2026

7.5

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2021-21955 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.5.