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MEDIUM · 6.5

CVE-2020-13594

The Bluetooth Low Energy (BLE) controller implementation in Espressif ESP-IDF 4.2 and earlier (for ESP32 devices) does not properly restrict the channel map field of the connection request packet on r...

Vulnerability Description

The Bluetooth Low Energy (BLE) controller implementation in Espressif ESP-IDF 4.2 and earlier (for ESP32 devices) does not properly restrict the channel map field of the connection request packet on reception, allowing attackers in radio range to cause a denial of service (crash) via a crafted packet.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
EspressifEsp-Idf<= 4.2
EspressifEsp32-

Related Weaknesses (CWE)

CWE-20

References

FAQ

What is CVE-2020-13594?

CVE-2020-13594 is a vulnerability with a CVSS score of 6.5 (MEDIUM). The Bluetooth Low Energy (BLE) controller implementation in Espressif ESP-IDF 4.2 and earlier (for ESP32 devices) does not properly restrict the channel map field of the connection request packet on r...

How severe is CVE-2020-13594?

CVE-2020-13594 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-13594?

Check the references section above for vendor advisories and patch information. Affected products include: Espressif Esp-Idf, Espressif Esp32.