CVE-2021-22806: Schneider Electric Fellerlynk Firmware

High severity, CVSS 7.5. EPSS: 1% chance of exploitation in the next 30 days.

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)

Affected products

• Schneider Electric Fellerlynk Firmware: up to and including 2.6.1
• Schneider Electric Spacelynk Firmware: up to and including 2.6.1
• Schneider Electric Wiser For KNX Firmware: up to and including 2.6.1

Published 2022-02-11. Last modified 2026-06-17.