CVE-2021-37605

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.

• CWE-670

• https://ww1.microchip.com/downloads/en/DeviceDoc/asf-release-notes-3.50.0.100-readme.pdfVendor Advisory
• https://ww1.microchip.com/downloads/en/DeviceDoc/asf-release-notes-3.51.0.101-readme.pdfRelease Notes, Vendor Advisory
• https://www.microchip.com/en-us/development-tools-tools-and-software/libraries-code-examples-and-more/advanced-software-framework-for-sam-devices#DownloadsVendor Advisory
• https://www.microchip.com/en-us/products/wireless-connectivity/software-vulnerability-response/miwi-software-vulnerabilityVendor Advisory
• https://www.microchip.com/en-us/products/wireless-connectivity/sub-ghz/miwi-protocolVendor Advisory
• https://www.microchip.com/product-change-notifications/#/Vendor Advisory
• https://ww1.microchip.com/downloads/en/DeviceDoc/asf-release-notes-3.50.0.100-readme.pdfVendor Advisory
• https://ww1.microchip.com/downloads/en/DeviceDoc/asf-release-notes-3.51.0.101-readme.pdfRelease Notes, Vendor Advisory
• https://www.microchip.com/en-us/development-tools-tools-and-software/libraries-code-examples-and-more/advanced-software-framework-for-sam-devices#DownloadsVendor Advisory
• https://www.microchip.com/en-us/products/wireless-connectivity/software-vulnerability-response/miwi-software-vulnerabilityVendor Advisory
• https://www.microchip.com/en-us/products/wireless-connectivity/sub-ghz/miwi-protocolVendor Advisory
• https://www.microchip.com/product-change-notifications/#/Vendor Advisory

Published

Aug 5, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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