{"id":"CVE-2019-12587","url":"https://www.cyber-defence.io/tools/cve/CVE-2019-12587","generatedAt":"2026-10-29T00:59:25.905Z","title":"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 allows the installation of a zero Pairwise Master Key (PMK) after the completion of any EAP authentication method, which allows attackers in…","description":"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 allows the installation of a zero Pairwise Master Key (PMK) after the completion of any EAP authentication method, which allows attackers in radio range to replay, decrypt, or spoof frames via a rogue access point.","published":"2019-09-04T12:15:11.000Z","lastModified":"2026-06-17T02:14:55.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":8.1,"severity":"HIGH","vector":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"},"cwe":["CWE-327"],"affected":["espressif/esp-idf","espressif/esp8266 nonos sdk"],"epss":{"score":0.00875,"percentile":0.5878,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.88%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/Matheus-Garbelini/esp32_esp8266_attacks","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/espressif","tags":["Product"],"source":"cve@mitre.org"},{"url":"https://matheus-garbelini.github.io/home/post/zero-pmk-installation/","tags":["Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/Matheus-Garbelini/esp32_esp8266_attacks","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/espressif","tags":["Product"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://matheus-garbelini.github.io/home/post/zero-pmk-installation/","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-12587","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}