# CVE-2026-19293

## Summary

- **CVE ID:** CVE-2026-19293
- **Severity:** HIGH
- **CVSS Score:** 8.8 (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
- **CWE:** CWE-521
- **Published:** Aug 13, 2026
- **Last Modified:** Aug 13, 2026

## Description

SMP security request (from peripheral) does not include the maximum
encryption key size supported. Using a key with less than the maximum keysize
makes brute-forcing the key easier. See V6 in BLERP paper linked below.

## Affected Products

- silabs.com — WiseConnect (4.0.0)
- silabs.com — WiseConnect (2.0.0)

## References

- [CNA](https://docs.silabs.com/sisdk-release-notes/latest/sisdk-wifi-release-notes/sisdk-wifible-ble-release-notes)
- [CNA](https://docs.silabs.com/rs9116-wiseconnect/latest/wifibt-wc-release-notes/rs9116-ble-release-notes#bug-fixes)
- [CNA](https://community.silabs.com/068Vm00000x0yyH)
- [CNA](https://www.ndss-symposium.org/ndss-paper/blerp-ble-re-pairing-attacks-and-defenses/)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.13%
- **EPSS Percentile:** 3.2

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._