This vulnerability involves Bluetooth re-pairing in silabs.com WiseConnect modules RS9116W and SiWx91x, where the process can downgrade the security level during re-pairing with an existing device. This flaw allows an attacker to bypass authentication controls by spoofing, classified under CWE-290. The CVSS v3.1 base score is 8.8, indicating high severity with network attack vector, low attack complexity, no privileges required, no user interaction, and high impact on confidentiality, integrity, and availability. The affected versions explicitly stated are 2.0.0 and 4.0.0. There is no vendor advisory or patch information available at this time.

Successful exploitation could allow an attacker to bypass authentication mechanisms by spoofing during Bluetooth re-pairing, potentially leading to unauthorized access and full compromise of confidentiality, integrity, and availability of the affected device communications.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should monitor silabs.com advisories for updates and consider limiting Bluetooth re-pairing operations or applying compensating controls where feasible.