CVE-2021-22735: Schneider Electric Homelynk Firmware

High severity, CVSS 7.2. EPSS: 1% chance of exploitation in the next 30 days.

Improper Verification of Cryptographic Signature vulnerability exists inhomeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior which could allow remote code execution when unauthorized code is copied to the device.

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.