Wi-SUN Vulnerability in Silicon Labs Products
CVE-2025-7448

8.6HIGH

Key Information:

Vendor

Silabs.com

Status
Wi-sun Stack
Vendor
CVE Published:
12 September 2025

What is CVE-2025-7448?

The Wi-SUN technology from Silicon Labs is susceptible to a security flaw whereby unexpected receptions of 4-Way Handshake packets could enable the generation of predictable cryptographic keys. This vulnerability creates an opportunity for attackers to execute Man in the Middle (MitM) attacks, compromising the integrity and confidentiality of the communication within affected devices.

Affected Version(s)

Wi-SUN Stack 2.6.0

References

https://docs.silabs.com/sisdk-release-notes/latest/sisdk-...
release-notes
https://community.silabs.com/068Vm00000UtuIG
vendor-advisorypermissions-required

CVSS V4

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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CVE-2025-7448 : Wi-SUN Vulnerability in Silicon Labs Products