Auth bypass in Espressif Esp8266_nonos_sdk
CVE-2020-12638
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 authenti…
Vulnerability class: Broken Authentication
EPSS: 0.005 (37.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Espressif Esp8266_nonos_sdk
- Espressif Esp8266_rtos_sdk
- Espressif Esp-idf
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-12638?
- CVE-2020-12638 is a medium-severity vulnerability in Espressif Esp8266_nonos_sdk, classified under Improper Authentication. CVSS score: 6.8/10. Published 2020-07-23.
- How severe is CVE-2020-12638?
- Medium severity. CVSS v3 base score is 6.8 out of 10.