CVE-2020-16146

moderate-risk
Published 2021-01-12

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.

Do I need to act?

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0.35% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Espressif

References (4)

Third Party Advisory https://github.com/espressif/esp-idf
Third Party Advisory https://github.com/pokerfacett/MY_CVE_CREDIT/blob/master/CVE-2020-16146.md
Third Party Advisory https://github.com/espressif/esp-idf
Third Party Advisory https://github.com/pokerfacett/MY_CVE_CREDIT/blob/master/CVE-2020-16146.md
32
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 1/34 · Minimal
Exposure 5/34 · Minimal