CVE-2021-21940 — CRITICAL (10.0)

Vulnerability Description

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.

CVSS Score

10.0

CRITICAL

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

Affected Products

Vendor	Product	Versions
Anker	Eufy Homebase 2 Firmware	2.1.6.9h
Anker	Eufy Homebase 2	-

Related Weaknesses (CWE)

CWE-122 CWE-787

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1369ExploitThird Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1369ExploitThird Party Advisory

FAQ

What is CVE-2021-21940?

CVE-2021-21940 is a vulnerability with a CVSS score of 10.0 (CRITICAL). 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 overflo...

How severe is CVE-2021-21940?

CVE-2021-21940 has been rated CRITICAL with a CVSS base score of 10.0/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-21940?

Check the references section above for vendor advisories and patch information. Affected products include: Anker Eufy Homebase 2 Firmware, Anker Eufy Homebase 2.