CVE-2020-12638

MediumCVSS 6.8/10Last modified Jun 17, 2026

Description

An encryption-bypass issue was discovered on Espressif ESP-IDF devices through 4.2, ESP8266_NONOS_SDK devices through 3.0.3, and ESP8266_RTOS_SDK devices through 3.3. Broadcasting forged beacon frames forces a device to change its authentication mode to OPEN, effectively disabling its 802.11 encryption.

Metrics

CVSS 3.1 6.8/10CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-287 CWE-319

Affected software

No affected versions have been published.

Timeline

Published: Jul 23, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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