CVE-2020-12638
- Source
- https://cve.org/CVERecord?id=CVE-2020-12638
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-12638.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2020-12638
- Published
- 2020-07-23T16:15:12.490Z
- Modified
- 2026-05-09T12:27:25.230380Z
- Severity
-
- 6.8 (Medium) CVSS_V3 - CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
- Summary
- [none]
- Details
-
An encryption-bypass issue was discovered on Espressif ESP-IDF devices through 4.2, ESP8266NONOSSDK devices through 3.0.3, and ESP8266RTOSSDK devices through 3.3. Broadcasting forged beacon frames forces a device to change its authentication mode to OPEN, effectively disabling its 802.11 encryption.
- References
Affected packages
Git / github.com/espressif/esp-idf
Affected ranges
- Type
- GIT
- Repo
- https://github.com/espressif/esp-idf
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedLast affectedLast affected
- Database specific
{ "cpe": [ "cpe:2.3:a:espressif:esp-idf:*:*:*:*:*:*:*:*", "cpe:2.3:a:espressif:esp8266_nonos_sdk:*:*:*:*:*:*:*:*" ], "source": "CPE_FIELD", "extracted_events": [ { "introduced": "0" }, { "last_affected": "4.2" }, { "last_affected": "3.0.3" } ] }
Git / github.com/espressif/esp8266_rtos_sdk
Affected ranges
- Type
- GIT
- Repo
- https://github.com/espressif/esp8266_rtos_sdk
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedLast affected
- Database specific
{ "cpe": "cpe:2.3:a:espressif:esp8266_rtos_sdk:*:*:*:*:*:*:*:*", "source": "CPE_FIELD", "extracted_events": [ { "introduced": "0" }, { "last_affected": "3.3" } ] }