CVE-2021-22733: Schneider Electric Homelynk Firmware

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

Improper Privilege Management vulnerability exists in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior which could cause shell access when unauthorized code is loaded into the system folder.

Affected products

• Schneider Electric Homelynk Firmware: up to and including 2.6.0
• Schneider Electric Spacelynk Firmware: up to and including 2.6.0

Published 2021-05-26. Last modified 2026-06-17.