VULNERABILITY INTELLIGENCE

CVE-2021-34145

CVSS score5.3 MEDIUM
EPSS probability0.51%
CISA KEVNot currently listed
Published2021-09-07
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

The Bluetooth Classic implementation in the Cypress WICED BT stack through 2.9.0 for CYW20735B1 devices does not properly handle the reception of LMP_max_slot with an invalid Baseband packet type (and LT_ADDRESS and LT_ADDR) after completion of the LMP setup procedure, allowing attackers in radio range to trigger a denial of service (firmware crash) via a crafted LMP packet.

Weakness classification

  • nvd@nist.gov: NVD-CWE-noinfo

Primary references