CVE-2026-19292

Published: Aug 13, 2026Modified: Sep 8, 2026

8.8

Vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability: 2.8 / Impact: 5.9

Source: product-security@silabs.com (Secondary)

Description

Re-pairing with a legitimate device can use a lower security level than previous making brute-forcing the LTK easier. See V4 in the BLERP paper linked below.

Related CWEs

CWE-305

Authentication Bypass by Primary Weakness

The authentication algorithm is sound, but the implemented mechanism can be bypassed as the result of a separate weakness that is primary to the authentication error.

References (4)

https://community.silabs.com/068Vm00000x0yyH

Source: product-security@silabs.com

https://docs.silabs.com/rs9116-wiseconnect/latest/wifibt-wc-release-notes/rs9116-ble-release-notes#bug-fixes

Source: product-security@silabs.com

https://docs.silabs.com/sisdk-release-notes/latest/sisdk-wifi-release-notes/sisdk-wifible-ble-release-notes

Source: product-security@silabs.com

https://www.ndss-symposium.org/ndss-paper/blerp-ble-re-pairing-attacks-and-defenses/

Source: product-security@silabs.com

Timeline

No history available yet.