CVE-2021-37605 json
In version 6.5 Microchip MiWi software and all previous versions including legacy products, the stack is validating only two out of four Me…
published 2021-08-05 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-24163
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 70%
- public exploits
- 0
- none known
Summary
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.
Exploit prediction
1.28% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-670 Always-Incorrect Control Flow Implementation
References
-
microchip.com
/product-change-notifications/#/
vendor-advisory
-
microchip.com
/en-us/products/wireless-connectivity/sub-ghz/miwi-protocol
vendor-advisory
-
ww1.microchip.com
/downloads/en/DeviceDoc/asf-release-notes-3.50.0.100-readme.pdf
vendor-advisory
-
microchip.com
/en-us/development-tools-tools-and-software/libraries-code-examples-and-more/advanced-software-framework-for-s
vendor-advisory
-
ww1.microchip.com
/downloads/en/DeviceDoc/asf-release-notes-3.51.0.101-readme.pdf
release-notes, vendor-advisory
-
microchip.com
/en-us/products/wireless-connectivity/software-vulnerability-response/miwi-software-vulnerability
vendor-advisory
Sources
- CVE List CVE-2021-37605
- NVD CVE-2021-37605
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.