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Medium severity6.8NVD Advisory· Published Jul 23, 2020· Updated Jun 17, 2026

CVE-2020-12638

CVE-2020-12638

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

6
  • Espressif/Esp Idf2 versions
    cpe:2.3:a:espressif:esp-idf:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:espressif:esp-idf:*:*:*:*:*:*:*:*range: <=4.2
    • (no CPE)range: <=4.2
  • Espressif/ESP8266_NONOS_SDK2 versions
    cpe:2.3:a:espressif:esp8266_nonos_sdk:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:espressif:esp8266_nonos_sdk:*:*:*:*:*:*:*:*range: <=3.0.3
    • (no CPE)range: <=3.0.3
  • Espressif/Esp8266 Rtos SDK
    cpe:2.3:a:espressif:esp8266_rtos_sdk:*:*:*:*:*:*:*:*
    Range: <=3.3
  • Espressif/ESP-IDFdescription

Patches

Vulnerability mechanics

References

1

News mentions

0

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