What is CVE-2020-16146?

CVE-2020-16146 is a high-severity vulnerability in Espressif Esp-idf, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2021-01-12.

How severe is CVE-2020-16146?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2020-16146 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Espressif Esp-idf

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 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 c…

Vulnerability class: Buffer Overflow

EPSS: 0.014 (69.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Espressif Esp-idf
N/a — versions n/a

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

References

cve@mitre.org (Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-16146?: CVE-2020-16146 is a high-severity vulnerability in Espressif Esp-idf, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2021-01-12.
How severe is CVE-2020-16146?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2020-16146 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.