CVE-2021-22806 Information disclosure in spaceLYnk (V2.6.1 and prior), Wiser for KNX (V2.6.1 and prior), fellerLYnk (V2.6.1 and prior)

High 7.5 Published 11 Feb 2022 Updated 3 Aug 2024

Attackers can exfiltrate data and gain unauthorized access by tricking users into visiting a malicious website on affected smart home gateways.

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-2021-22806?

CVE-2021-22806 is a high-severity vulnerability in spaceLYnk (V2.6.1 and prior), Wiser for KNX (V2.6.1 and prior), fellerLYnk (V2.6.1 and prior), published on 11 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A CWE-669: Incorrect Resource Transfer Between Spheres vulnerability exists that could cause data exfiltration and unauthorized access when accessing a malicious website. Affected Product: spaceLYnk (V2.6.1 and prior), Wiser for KNX (V2.6.1 and prior), fellerLYnk (V2.6.1 and prior)

Weakness: CWE-669

Which versions are affected by CVE-2021-22806?

It affects 3 products.

Products include Schneider-Electric Fellerlynk Firmware, Schneider-Electric Spacelynk Firmware, Schneider-Electric Wiser for Knx Firmware.

How do I fix CVE-2021-22806?

No fix has been published for CVE-2021-22806 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-22806 being exploited?

There is no known exploitation of CVE-2021-22806 in the wild and no public exploit code.

Sources

Also known as GHSA-565q-5jqq-h2wg.