CVE-2026-19293

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.

CVSS 3.1

8.8CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 9% of CVEs (scores of 2026-10-25)

CWE

CWE-521

Published

2026-08-13

Modified

2026-10-23

Record from

the NVD, synced 2026-10-24

References

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

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