CVE-2021-37605: Microchip Miwi

High severity, CVSS 7.5. EPSS: 1.3% chance of exploitation in the next 30 days.

In version 6.5 Microchip MiWi software and all previous versions including legacy products, the stack is validating only two out of four Message Integrity Check (MIC) bytes.

Affected products

• Microchip Miwi: version 6.5 only

Published 2021-08-05. Last modified 2026-06-17.