CVE-2021-34173
HighPublic PoC
Published: 14 July 2021
Published
14 July 2021
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.0030
53.4th percentile
Risk Priority
15
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-34173 is a high-severity an unspecified weakness vulnerability in Espressif Esp32 Firmware. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 46.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-20835
Vulnerability details
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.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
espressif
esp32 firmware
≤ 4.2
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.