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.
Published 2021-12-09 16:15:08
Updated 2022-09-03 03:32:36
Source Talos
View at NVD,   CVE.org
Vulnerability category: BypassGain privilege

Products affected by CVE-2021-21955

Exploit prediction scoring system (EPSS) score for CVE-2021-21955

0.31%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 70 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-21955

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.0
MEDIUM AV:N/AC:L/Au:N/C:P/I:N/A:N
10.0
2.9
NIST
7.7
HIGH CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:H
2.2
5.5
Talos
7.5
HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
3.9
3.6
NIST

CWE ids for CVE-2021-21955

  • When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
    Assigned by: nvd@nist.gov (Primary)
  • The number of possible random values is smaller than needed by the product, making it more susceptible to brute force attacks.
    Assigned by: talos-cna@cisco.com (Secondary)

References for CVE-2021-21955

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