VULNERABILITY INTELLIGENCE

CVE-2021-28135

CVSS score6.5 MEDIUM
EPSS probability0.82%
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 Espressif ESP-IDF 4.4 and earlier does not properly handle the reception of continuous unsolicited LMP responses, allowing attackers in radio range to trigger a denial of service (crash) in ESP32 by flooding the target device with LMP Feature Response data.

Weakness classification

  • nvd@nist.gov: NVD-CWE-Other

Primary references