The EAP peer implementation in Espressif ESP-IDF 2.0.0 through 4.0.0 and…
Priority LOW 32Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
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 processes EAP Success messages before any EAP method completion or failure, which allows attackers in radio range to cause a denial of service (crash) via a crafted message.
Why it matters now
EPSS 0.0147 73rd percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:espressif:arduino-esp32:*:*:*:*:*:*:*:* | up to 1.0.2 | Vulnerable | espressif |
| cpe:2.3:a:espressif:arduino-esp32:1.0.3:-:*:*:*:*:*:* | 1.0.3 | Vulnerable | espressif |
| cpe:2.3:a:espressif:arduino-esp32:1.0.3:rc1:*:*:*:*:*:* | 1.0.3 rc1 | Vulnerable | espressif |
| cpe:2.3:a:espressif:arduino-esp32:1.0.3:rc2:*:*:*:*:*:* | 1.0.3 rc2 | Vulnerable | espressif |
| cpe:2.3:a:espressif:esp-idf:*:*:*:*:*:*:*:* | 2.0.0 – 4.0.0 | Vulnerable | espressif |
| cpe:2.3:a:espressif:esp8266_nonos_sdk:*:*:*:*:*:*:*:* | 2.2.0 – 3.0.0 | Vulnerable | espressif |
- cpe:2.3:a:espressif:arduino-esp32:*:*:*:*:*:*:*:* Versions up to 1.0.2 Vulnerable ·espressif
- cpe:2.3:a:espressif:arduino-esp32:1.0.3:-:*:*:*:*:*:* Versions 1.0.3 Vulnerable ·espressif
- cpe:2.3:a:espressif:arduino-esp32:1.0.3:rc1:*:*:*:*:*:* Versions 1.0.3 rc1 Vulnerable ·espressif
- cpe:2.3:a:espressif:arduino-esp32:1.0.3:rc2:*:*:*:*:*:* Versions 1.0.3 rc2 Vulnerable ·espressif
- cpe:2.3:a:espressif:esp-idf:*:*:*:*:*:*:*:* Versions 2.0.0 – 4.0.0 Vulnerable ·espressif
- cpe:2.3:a:espressif:esp8266_nonos_sdk:*:*:*:*:*:*:*:* Versions 2.2.0 – 3.0.0 Vulnerable ·espressif
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-12586
- 2026-10-03 Alias added: GHSA-jj4g-g9rr-33cr
References
More espressif Arduino-esp32 vulnerabilities
- TI-2026-31061 arduino-esp32: Stack buffer overflow in WebServer multipart boundary parsing leads to remote crash potential RCE CVSS 3.1CRITICAL 9.8
- TI-2026-30028 Improper validation of NBNS name_len in arduino-esp32 NetBIOS leads to memory corruption CVSS 3.1HIGH 8.8
- TI-2026-31062 arduino-esp32: Digest authentication URI mismatch bypass in WebServer allows cross-resource replay attack CVSS 3.1HIGH 7.5
Sources
- CVE-2019-12586 · CVE Program
- CVE-2019-12586 · NVD
- FIRST EPSS
- GHSA-jj4g-g9rr-33cr · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences