What’s Vulnerable › Vulnerabilities

CVE-2020-16146

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-01-12 · updated 2026-06-17
• Weakness: CWE-120

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.

Affected products

• espressif esp-idf: from 2.0.0 through 2.1.1; from 3.0 through 3.0.9; from 3.1 through 3.1.7; from 3.2 through 3.2.3; from 3.3 through 3.3.2; from 4.0.0 through 4.0.1

References

• https://github.com/espressif/esp-idf
• https://github.com/pokerfacett/MY_CVE_CREDIT/blob/master/CVE-2020-16146.md
• https://github.com/espressif/esp-idf
• https://github.com/pokerfacett/MY_CVE_CREDIT/blob/master/CVE-2020-16146.md

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