CVE-2021-21955
An authentication bypass vulnerability exists in the get_aes_key_info_by_packetid() function of...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- Low
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2021-21955- CVSS 3.0
- 7.7 High
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:H - Weakness
- CWE-334
- Updated
- 2026-11-02
EUVDEUVD-2021-9126
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.
- Record
EUVD-2021-9126- CVSS 3.0
- 7.7 High
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-f9ww-7rv4-vqfq
An authentication bypass vulnerability exists in the get_aes_key_info_by_packetid() function of...
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.
- Record
GHSA-f9ww-7rv4-vqfq- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-287
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2021-21955- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - CVSS 3.0
- 7.7 High
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-334, CWE-287
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-21955 is a high vulnerability (CVSS 7.7) in Anker Eufy Homebase 2 Firmware, published December 9, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.01%, the 63rd percentile. No source names a fixed version.