Vulnerability CVE-2021-37604
Published: 2021-08-05

Description:
In the Microchip MiWi v6.5 software stack, there is a possibility of frame counters being validated/updated prior to message authentication.

Type:

CWE-863

 (Incorrect Authorization)

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Microchip -> MIWI 

 References:
https://www.microchip.com/product-change-notifications/#/
https://www.microchip.com/en-us/development-tools-tools-and-software/libraries-code-examples-and-more/advanced-software-framework-for-sam-devices#Downloads
https://www.microchip.com/en-us/products/wireless-connectivity/sub-ghz/miwi-protocol
https://ww1.microchip.com/downloads/en/DeviceDoc/asf-release-notes-3.50.0.100-readme.pdf
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