CVE-2021-37605
CVE-2021-37605 is a high-severity vulnerability in Microchip Miwi with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-670.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 5.0
- EPSS exploit prediction: 1% (67th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-670
- Affected product: Microchip Miwi
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2021-37605?
- CVE-2021-37605 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
- Is CVE-2021-37605 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-37605?
- CVE-2021-37605 affects Microchip Miwi. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-37605?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-37605 published?
- CVE-2021-37605 was published on 2021-08-05 and last updated on 2026-06-17.
References
- https://ww1.microchip.com/downloads/en/DeviceDoc/asf-release-notes-3.50.0.100-readme.pdf
- https://ww1.microchip.com/downloads/en/DeviceDoc/asf-release-notes-3.51.0.101-readme.pdf
- 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/software-vulnerability-response/miwi-software-vulnerability
- https://www.microchip.com/en-us/products/wireless-connectivity/sub-ghz/miwi-protocol
- https://www.microchip.com/product-change-notifications/#/
Affected products (1)
- cpe:2.3:a:microchip:miwi:6.5:*:*:*:*:*:*:*
More vulnerabilities in Microchip Miwi
- CVE-2021-37604 — High (CVSS 7.5): In version 6.5 of Microchip MiWi software and all previous versions including legacy products, there is a possibility…
All CVEs affecting Microchip Miwi →
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