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CVE-2019-12588

MediumPublished

The client 802.11 mac implementation in Espressif ESP8266_NONOS_SDK 2.2.0 through 3.1.0 does not validate correctly the RSN AuthKey suite list count in...

Published: Sep 4, 2019
Updated: Aug 4, 2024
Assigning CNA: mitre
Evidence observed: Aug 10, 2026

Primary CVSS

6.5/ 10Medium

nvd · CVSS 3.1

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS probability estimate

1.2%

Low · next 30 days

Percentile: 66.1%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

The client 802.11 mac implementation in Espressif ESP8266_NONOS_SDK 2.2.0 through 3.1.0 does not validate correctly the RSN AuthKey suite list count in beacon frames, probe responses, and association responses, which allows attackers in radio range to cause a denial of service (crash) via a crafted message.

Sources

esp32_esp8266_attacksPoC
Proof of Concept of ESP32/8266 Wi-Fi vulnerabilties (CVE-2019-12586, CVE-2019-12587, CVE-2019-12588)

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