CVE-2019-12586

Name: CVE-2019-12586
Creator: NVD / NIST
Published: 2019-09-04T20:15:10.607+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.35%

Last modified Jun 17, 2026

CVE-2019-12586 is a vulnerability of currently unknown severity. The EAP peer implementation in Espressif ESP-IDF 2.0.0 through 4.0.0 and ESP8266_NONOS_SDK 2.2.0 through 3.1.0 processes EAP Success messages before any EAP method completion or failure, which allows attackers in radio range to cause a denial of service (crash) via a crafted message.. EPSS estimates a 1.35% chance of exploitation in the next 30 days.

Description

The EAP peer implementation in Espressif ESP-IDF 2.0.0 through 4.0.0 and ESP8266_NONOS_SDK 2.2.0 through 3.1.0 processes EAP Success messages before any EAP method completion or failure, which allows attackers in radio range to cause a denial of service (crash) via a crafted message.

Metrics

EPSS Probability

1.35%

68.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Espressif	Arduino-Esp32	<= 1.0.2
Espressif	Arduino-Esp32	1.0.3
Espressif	Esp-Idf	>= 2.0.0, <= 4.0.0
Espressif	Esp8266 Nonos Sdk	>= 2.2.0, <= 3.0.0

References

https://github.com/Matheus-Garbelini/esp32_esp8266_attacksExploit, Third Party Advisory
https://github.com/espressifThird Party Advisory
https://matheus-garbelini.github.io/home/post/esp32-esp8266-eap-crash/Exploit, Patch, Third Party Advisory
https://github.com/Matheus-Garbelini/esp32_esp8266_attacksExploit, Third Party Advisory
https://github.com/espressifThird Party Advisory
https://matheus-garbelini.github.io/home/post/esp32-esp8266-eap-crash/Exploit, Patch, Third Party Advisory

Timeline

Published: Sep 4, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-12586?

How severe is CVE-2019-12586?

Severity scoring for CVE-2019-12586 is pending analysis. The EPSS model estimates a 1.35% probability of exploitation in the next 30 days.

How do I fix CVE-2019-12586?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-12586?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST