CVE-2021-28135

Summary

CVECVE-2021-28135
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-09-07 06:15:00 UTC
Updated2022-07-12 17:42:00 UTC
DescriptionThe 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.

Risk And Classification

Problem Types: NVD-CWE-Other

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Espressif Esp-idf All All All All

References

ReferenceSourceLinkTags
dl.packetstormsecurity.net/papers/general/braktooth.pdf MISC dl.packetstormsecurity.net
GitHub - espressif/esp-idf: Espressif IoT Development Framework. Official development framework for ESP32. MISC github.com
ESP32 Wi-Fi & Bluetooth MCU I Espressif Systems MISC www.espressif.com
GitHub - espressif/esp32-bt-lib: ESP32 Bluetooth stack (below HCI layer) precompiled libraries MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

CVE.report and Source URL Uptime Status status.cve.report