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Eufy Homebase 2 Firmware CVE-2021-21940

CRITICAL
Heap-based Buffer Overflow (CWE-122)
2021-10-12 talos-cna@cisco.com
10.0
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
10.0 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

1
CVE Published
Oct 12, 2021 - 14:15 nvd
CRITICAL 10.0

DescriptionNVD

A heap-based buffer overflow vulnerability exists in the pushMuxer processRtspInfo functionality of Anker Eufy Homebase 2 2.1.6.9h. A specially-crafted network packet can lead to a heap buffer overflow. An attacker can send a malicious packet to trigger this vulnerability.

AnalysisAI

A heap-based buffer overflow vulnerability exists in the pushMuxer processRtspInfo functionality of Anker Eufy Homebase 2 2.1.6.9h. Rated critical severity (CVSS 10.0), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-122. A heap-based buffer overflow vulnerability exists in the pushMuxer processRtspInfo functionality of Anker Eufy Homebase 2 2.1.6.9h. A specially-crafted network packet can lead to a heap buffer overflow. An attacker can send a malicious packet to trigger this vulnerability. Affected products include: Anker Eufy Homebase 2 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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CVE-2022-21806 CRITICAL POC
9.8 Jun 17

A use-after-free vulnerability exists in the mips_collector appsrv_server functionality of Anker Eufy Homebase 2 2.1.8.5

CVE-2021-21952 CRITICAL POC
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An authentication bypass vulnerability exists in the CMD_DEVICE_GET_RSA_KEY_REQUEST functionality of the home_security b

CVE-2021-21941 CRITICAL POC
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A use-after-free vulnerability exists in the pushMuxer CreatePushThread functionality of Anker Eufy Homebase 2 2.1.6.9h.

CVE-2022-25989 HIGH POC
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An authentication bypass vulnerability exists in the libxm_av.so getpeermac() functionality of Anker Eufy Homebase 2 2.1

CVE-2021-21953 HIGH POC
8.1 Dec 22

An authentication bypass vulnerability exists in the process_msg() function of the home_security binary of Anker Eufy Ho

CVE-2021-21955 HIGH POC
7.5 Dec 09

An authentication bypass vulnerability exists in the get_aes_key_info_by_packetid() function of the home_security binary

CVE-2022-26073 MEDIUM POC
6.5 May 05

A denial of service vulnerability exists in the libxm_av.so DemuxCmdInBuffer functionality of Anker Eufy Homebase 2 2.1.

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CVE-2021-21940 vulnerability details – vuln.today

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