CVE-2022-21806 Use after free in Eufy Homebase 2

Critical 10.0 Published 17 Jun 2022 Updated 15 Apr 2025

Remote attackers can achieve code execution on Anker Eufy Homebase 2 devices via crafted network packets exploiting a use-after-free flaw.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2022-21806?

CVE-2022-21806 is a critical use after free vulnerability in Anker Eufy Homebase 2, published on 17 Jun 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A use-after-free vulnerability exists in the mips_collector appsrv_server functionality of Anker Eufy Homebase 2 2.1.8.5h. A specially-crafted set of network packets can lead to remote code execution. The device is exposed to attacks from the network.

Weakness: CWE-416, CWE-368

Which versions are affected by CVE-2022-21806?

It affects 1 product.

Products include Anker Eufy Homebase 2 Firmware.

How do I fix CVE-2022-21806?

No fix has been published for CVE-2022-21806 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2022-21806 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-21806 exists.

Sources

Also known as GHSA-3vc5-mpf6-vw2r.