CVE-2019-12587

8.1 highEPSS 0.9%

High (8.1) in espressif. EPSS 0.9% chance of exploitation in the next 30 days.

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 allows the installation of a zero Pairwise Master Key (PMK) after the completion of any EAP authentication method, which allows attackers in radio range to replay, decrypt, or spoof frames via a rogue access point.

Severity

CVSS 3.0

8.1 high

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 58% of CVEs (scores of 2026-10-31)
CWE: CWE-327
Published: 2019-09-04
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

espressif:esp-idf
espressif:esp8266_nonos_sdk

References

https://github.com/Matheus-Garbelini/esp32_esp8266_attacks
https://github.com/espressif
https://matheus-garbelini.github.io/home/post/zero-pmk-installation/
https://github.com/Matheus-Garbelini/esp32_esp8266_attacks
https://github.com/espressif

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