CVEvulnerability

CVE-2021-37604

7.5 HIGH Published 2021-08-05 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-08-05
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:P/A:N
Weaknesses
CWE-670

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.

Affected configurations

• microchip miwi 6.5

Related

Weakness · CWE (1)

  • CWE-670 Always-Incorrect Control Flow Implementation weakness

References