Bluetooth Classic Vulnerability in Espressif ESP-IDF Products
CVE-2021-28139

8.8HIGH

Key Information:

Vendor

Espressif

Status
Esp-idf
Vendor
CVE Published:
7 September 2021

What is CVE-2021-28139?

The Bluetooth Classic implementation in Espressif's ESP-IDF 4.4 and earlier versions contains a critical flaw that undermines Feature Page restrictions. This weakness allows malicious actors within radio range to exploit the vulnerability by sending a specially crafted Extended Features bitfield payload, which can lead to arbitrary code execution on the ESP32. This poses a significant risk to devices utilizing the affected versions, highlighting the need for immediate patches and enhanced security measures.

References

https://github.com/espressif/esp-idf
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https://github.com/espressif/esp32-bt-lib
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https://www.espressif.com/en/products/socs/esp32
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CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.