VULNERABILITY INTELLIGENCE

CVE-2021-31609

CVSS score6.5 MEDIUM

EPSS probability0.41%

CISA KEVNot currently listed

Published2021-09-07

Last modified2026-06-17

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

Description

The Bluetooth Classic implementation in Silicon Labs iWRAP 6.3.0 and earlier does not properly handle the reception of an oversized LMP packet greater than 17 bytes, allowing attackers in radio range to trigger a crash in WT32i via a crafted LMP packet.

Weakness classification

nvd@nist.gov: NVD-CWE-noinfo

Primary references

cve@mitre.org — Technical Description, Third Party Advisory
cve@mitre.org — Product, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Technical Description, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Product, Vendor Advisory