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CVE-2019-12586

6.5 · MEDIUM

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 allo…

Published Sep 4, 2019EPSS 1.47%

Overview

CVE-2019-12586 is a medium-severity vulnerability. It was published on September 4, 2019 and has a CVSS 3.0 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 6.5, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/Matheus-Garbelini/esp32_esp8266_attacksGitHubgithub.com/espressifRefmatheus-garbelini.github.io/home/post/esp32-esp8266-eap-crash/GitHubgithub.com/Matheus-Garbelini/esp32_esp8266_attacksGitHubgithub.com/espressifRefmatheus-garbelini.github.io/home/post/esp32-esp8266-eap-crash/

How CyberStrike helps

Frequently asked questions

What is CVE-2019-12586?

CVE-2019-12586 is a medium-severity vulnerability. It was published on September 4, 2019 and has a CVSS 3.0 base score of 6.5 (MEDIUM).

How severe is CVE-2019-12586?

This vulnerability has a CVSS 3.0 base score of 6.5, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2019-12586?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2019-12586?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-12586 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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