Vulnerability Description
In version 6.5 of Microchip MiWi software and all previous versions including legacy products, there is a possibility of frame counters being validated/updated prior to the message authentication. With this vulnerability in place, an attacker may increment the incoming frame counter values by injecting messages with a sufficiently large frame counter value and invalid payload. This results in denial of service/valid packets in the network. There is also a possibility of a replay attack in the stack.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microchip | Miwi | 6.5 |
Related Weaknesses (CWE)
References
- https://ww1.microchip.com/downloads/en/DeviceDoc/asf-release-notes-3.50.0.100-reRelease NotesVendor Advisory
- https://www.microchip.com/en-us/development-tools-tools-and-software/libraries-cVendor Advisory
- https://www.microchip.com/en-us/products/wireless-connectivity/software-vulnerabVendor Advisory
- https://www.microchip.com/en-us/products/wireless-connectivity/sub-ghz/miwi-protVendor Advisory
- https://www.microchip.com/product-change-notifications/#/Vendor Advisory
- https://ww1.microchip.com/downloads/en/DeviceDoc/asf-release-notes-3.50.0.100-reRelease NotesVendor Advisory
- https://www.microchip.com/en-us/development-tools-tools-and-software/libraries-cVendor Advisory
- https://www.microchip.com/en-us/products/wireless-connectivity/software-vulnerabVendor Advisory
- https://www.microchip.com/en-us/products/wireless-connectivity/sub-ghz/miwi-protVendor Advisory
- https://www.microchip.com/product-change-notifications/#/Vendor Advisory
FAQ
What is CVE-2021-37604?
CVE-2021-37604 is a vulnerability with a CVSS score of 7.5 (HIGH). In version 6.5 of Microchip MiWi software and all previous versions including legacy products, there is a possibility of frame counters being validated/updated prior to the message authentication. Wit...
How severe is CVE-2021-37604?
CVE-2021-37604 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-37604?
Check the references section above for vendor advisories and patch information. Affected products include: Microchip Miwi.