CVE-2022-21806: A use-after-free vulnerability exists in the mips_collector appsrv_server functionality of Anker Eufy Homebase

This week

CRITICAL 9.8REMOTEMITIGATE

CVE-2022-21806 is a critical-severity flaw (CVSS 9.8) affecting eufy homebase 2 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.3% (top 16%)
CISA exploited list	No
Weakness	CWE-368, CWE-416
Published	2022-06-17
Last modified	2026-06-17

Publisher (CNA): Talos · Vendor: anker

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-06-17 18:15 UTCPublished CVE record published
2026-06-17 04:27 UTCUpdated Record last modified

anker eufy homebase 2 firmware MITIGATE

Affected: 2.1.8.5h

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.1.8.5h

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-21806?

eufy homebase 2 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-21806 being exploited?

CVE-2022-21806 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-21806 affect?

CVE-2022-21806 affects eufy homebase 2 firmware. Severity is critical (CVSS 9.8). 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 t

How urgent is CVE-2022-21806?

Priority 65/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

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References

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