CVE-2021-22736: Schneider Electric Homelynk Firmware

High severity, CVSS 7.5. EPSS: 1.1% chance of exploitation in the next 30 days.

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability exists in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior which could cause a denial of service when an unauthorized file is uploaded.

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.