CVE-2020-16146 - CVE House
Back to Database
Status published High CVE-2020-16146

Espressif ESP-IDF 2.x, 3.0.x through 3.0.9, 3.1.x through 3.1.7, 3.2.x...

Vulnerability Description

Espressif ESP-IDF 2.x, 3.0.x through 3.0.9, 3.1.x through 3.1.7, 3.2.x through 3.2.3, 3.3.x through 3.3.2, and 4.0.x through 4.0.1 has a Buffer Overflow in BluFi provisioning in btc_blufi_recv_handler function in blufi_prf.c. An attacker can send a crafted BluFi protocol Write Attribute command to characteristic 0xFF01. With manipulated packet fields, there is a buffer overflow.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2020-16146

Credits & Attribution

No credits recorded in the NVD database.

References

More from espressif

View All →
CVE-2025-68657
espressif/usb_host_hid Double-Free Race Condition in USB Host HID Device Close Path
Medium 6.4
CVE-2025-68656
Espressif ESP-IDF USB Host HID (Human Interface Device) Driver Descriptor Use-After-Free Vulnerability
Medium 6.8
CVE-2025-68622
Espressif ESP-IDF USB Host UVC Class Driver has a stack buffer overflow in UVC descriptor printing
Medium 6.8
CVE-2025-68474
ESF-IDF Has Out-of-Bounds Write in ESP32 Bluetooth AVRCP Vendor Command Handling
Medium 6.1
CVE-2025-68473
ESF-IDF Has Out-of-Bounds Read in ESP32 Bluetooth SDP Result Handling
Unknown 0

Affected Vendor

Affected Software

esp-idf
Vulnerable Versions:
2.0.0, 3.0, 3.1, 3.2, 3.3, 4.0.0

Timeline

Official Publish: January 12th, 2021
Last Modified: August 4th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.