What is CVE-2021-34173?

CVE-2021-34173 is a high-severity vulnerability in Espressif Esp32. CVSS score: 7.5/10. Published 2021-07-14.

How severe is CVE-2021-34173?

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

Is CVE-2021-34173 known to be exploited?

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

Vulnerability in Espressif Esp32

CVE-2021-34173

An attacker can cause a Denial of Service and kernel panic in v4.2 and earlier versions of Espressif esp32 via a malformed beacon csa frame. The device requires a reboot to recover.

EPSS: 0.015 (70.9th 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 Esp32
Espressif Esp32_firmware
N/a — versions n/a

Public proof-of-concept exploits

ARPSyndicate/cvemon
E7mer/Owfuzz
alipay/Owfuzz
y0d4a/OWFuzz

References

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

Frequently asked questions

What is CVE-2021-34173?: CVE-2021-34173 is a high-severity vulnerability in Espressif Esp32. CVSS score: 7.5/10. Published 2021-07-14.
How severe is CVE-2021-34173?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2021-34173 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.