Vulnerability · Published Aug 13, 2026 · Assigned by Silabs
CVE-2026-19292Bluetooth re-pairing with legitimate device can use lower security level
High 8.8
In plain English
A high-severity security flaw in WiseConnect from silabs.com. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 29% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.4%top 71.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| silabs.com | WiseConnect | 4.0.0 – before 4.1.02.0.0 – before 2.14.0 |
Weakness: CWE-305 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://docs.silabs.com/sisdk-release-notes/latest/sisdk-wifi-release-notes/sisdk-wifible-ble-release-notes release-notes
- https://docs.silabs.com/rs9116-wiseconnect/latest/wifibt-wc-release-notes/rs9116-ble-release-notes#bug-fixes release-notes
- https://community.silabs.com/068Vm00000x0yyH vendor-advisory, permissions-required
- https://www.ndss-symposium.org/ndss-paper/blerp-ble-re-pairing-attacks-and-defenses/ related