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CVE-2021-37604
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2021-08-05T16:15:07.217 · Last modified 2026-06-17T04:00:49.173

Summary

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.

Affected products

microchip — miwi

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.