{"id":"CVE-2020-12506","aliases":["EUVD-2020-4808","GHSA-8c2w-ph9m-jcmf"],"status":"published","title":"WAGO: Authentication Bypass Vulnerability in WAGO 750-36X and WAGO 750-8XX Versions \u003c= FW03","description":"Improper Authentication vulnerability in WAGO 750-8XX series with FW version \u003c= FW03 allows an attacker to change the settings of the devices by sending specifically constructed requests without authentication This issue affects: WAGO 750-362, WAGO 750-363, WAGO 750-823, WAGO 750-832/xxx-xxx, WAGO 750-862, WAGO 750-891, WAGO 750-890/xxx-xxx in versions FW03 and prior versions.","severity":{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01452,"percentile":0.73752,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-306"],"published":"2020-09-30T15:43:20Z","modified":"2026-06-17T02:51:55Z","products":[{"vendor":"wago","product":"750-362"},{"vendor":"wago","product":"750-362_firmware"},{"vendor":"wago","product":"750-363"},{"vendor":"wago","product":"750-363_firmware"},{"vendor":"wago","product":"750-823"},{"vendor":"wago","product":"750-823_firmware"},{"vendor":"wago","product":"750-832/xxx-xxx"},{"vendor":"wago","product":"750-832_firmware"},{"vendor":"wago","product":"750-862"},{"vendor":"wago","product":"750-862_firmware"},{"vendor":"wago","product":"750-890/xxx-xxx"},{"vendor":"wago","product":"750-890_firmware"},{"vendor":"wago","product":"750-891"},{"vendor":"wago","product":"750-891_firmware"}],"references":[{"url":"https://cert.vde.com/en-us/advisories/vde-2020-028","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-12506"},{"url":"https://github.com/advisories/GHSA-8c2w-ph9m-jcmf"}],"sources":{"cve":[{"id":"CVE-2020-12506","title":"WAGO: Authentication Bypass Vulnerability in WAGO 750-36X and WAGO 750-8XX Versions \u003c= FW03","description":"Improper Authentication vulnerability in WAGO 750-8XX series with FW version \u003c= FW03 allows an attacker to change the settings of the devices by sending specifically constructed requests without authentication This issue affects: WAGO 750-362, WAGO 750-363, WAGO 750-823, WAGO 750-832/xxx-xxx, WAGO 750-862, WAGO 750-891, WAGO 750-890/xxx-xxx in versions FW03 and prior versions.","status":"published","published":"2020-09-30T15:43:20.405Z","modified":"2024-09-17T00:06:46.518Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:35:53.236501Z"}],"euvd":[{"id":"EUVD-2020-4808","description":"Improper Authentication vulnerability in WAGO 750-8XX series with FW version \u003c= FW03 allows an attacker to change the settings of the devices by sending specifically constructed requests without authentication This issue affects: WAGO 750-362, WAGO 750-363, WAGO 750-823, WAGO 750-832/xxx-xxx, WAGO 750-862, WAGO 750-891, WAGO 750-890/xxx-xxx in versions FW03 and prior versions.","status":"published","published":"2020-09-30T15:43:20Z","modified":"2024-09-17T00:06:46Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"critical"}],"updated_at":"2026-11-03T00:29:01.977589Z"}],"ghsa":[{"id":"GHSA-8c2w-ph9m-jcmf","title":"Improper Authentication vulnerability in WAGO 750-8XX series with FW version \u003c= FW03 allows an...","description":"Improper Authentication vulnerability in WAGO 750-8XX series with FW version \u003c= FW03 allows an attacker to change the settings of the devices by sending specifically constructed requests without authentication This issue affects: WAGO 750-362 version FW03 and prior versions. WAGO 750-363 version FW03 and prior versions. WAGO 750-823 version FW03 and prior versions. WAGO 750-832/xxx-xxx version FW03 and prior versions. WAGO 750-862 version FW03 and prior versions. WAGO 750-891 version FW03 and prior versions. WAGO 750-890/xxx-xxx version FW03 and prior versions.","status":"published","published":"2022-05-24T17:29:45Z","modified":"2023-01-29T05:04:01Z","cwes":["CWE-306"],"updated_at":"2026-11-02T14:45:27.054092Z"}],"nvd":[{"id":"CVE-2020-12506","description":"Improper Authentication vulnerability in WAGO 750-8XX series with FW version \u003c= FW03 allows an attacker to change the settings of the devices by sending specifically constructed requests without authentication This issue affects: WAGO 750-362, WAGO 750-363, WAGO 750-823, WAGO 750-832/xxx-xxx, WAGO 750-862, WAGO 750-891, WAGO 750-890/xxx-xxx in versions FW03 and prior versions.","status":"published","published":"2020-09-30T16:15:12.777Z","modified":"2026-06-17T02:51:55.983Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:06:17.70091Z"}]}}