{"id":"CVE-2021-22772","aliases":["EUVD-2021-9907","GHSA-9gg2-wj6f-29qm"],"status":"published","title":"A CWE-306: Missing Authentication for Critical Function vulnerability exists in Easergy T200 (...","description":"A CWE-306: Missing Authentication for Critical Function vulnerability exists in Easergy T200 ((Modbus) SC2-04MOD-07000100 and earlier), Easergy T200 ((IEC104) SC2-04IEC-07000100 and earlier), and Easergy T200 ((DNP3) SC2-04DNP-07000102 and earlier) that could cause unauthorized operation when authentication is bypassed.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01541,"percentile":0.75147,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-306"],"published":"2021-07-21T10:41:35Z","modified":"2026-06-17T03:37:44Z","products":[{"vendor":"schneider-electric","product":"t200e_firmware"},{"vendor":"schneider-electric","product":"t200i_firmware"},{"vendor":"schneider-electric","product":"t200p_firmware"}],"references":[{"url":"http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-194-05","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-22772"},{"url":"https://github.com/advisories/GHSA-9gg2-wj6f-29qm"}],"sources":{"cve":[{"id":"CVE-2021-22772","description":"A CWE-306: Missing Authentication for Critical Function vulnerability exists in Easergy T200 ((Modbus) SC2-04MOD-07000100 and earlier), Easergy T200 ((IEC104) SC2-04IEC-07000100 and earlier), and Easergy T200 ((DNP3) SC2-04DNP-07000102 and earlier) that could cause unauthorized operation when authentication is bypassed.","status":"published","published":"2021-07-21T10:41:35Z","modified":"2024-08-03T18:51:07.349Z","cwes":["CWE-306"],"updated_at":"2026-11-02T14:32:57.368269Z"}],"euvd":[{"id":"EUVD-2021-9907","description":"A CWE-306: Missing Authentication for Critical Function vulnerability exists in Easergy T200 ((Modbus) SC2-04MOD-07000100 and earlier), Easergy T200 ((IEC104) SC2-04IEC-07000100 and earlier), and Easergy T200 ((DNP3) SC2-04DNP-07000102 and earlier) that could cause unauthorized operation when authentication is bypassed.","status":"published","published":"2021-07-21T10:41:35Z","modified":"2024-08-03T18:51:07Z","updated_at":"2026-11-03T03:25:01.606931Z"}],"ghsa":[{"id":"GHSA-9gg2-wj6f-29qm","title":"A CWE-306: Missing Authentication for Critical Function vulnerability exists in Easergy T200 (...","description":"A CWE-306: Missing Authentication for Critical Function vulnerability exists in Easergy T200 ((Modbus) SC2-04MOD-07000100 and earlier), Easergy T200 ((IEC104) SC2-04IEC-07000100 and earlier), and Easergy T200 ((DNP3) SC2-04DNP-07000102 and earlier) that could cause unauthorized operation when authentication is bypassed.","status":"published","published":"2022-05-24T19:08:47Z","modified":"2023-01-30T05:00:56Z","cwes":["CWE-306"],"updated_at":"2026-11-02T14:46:18.181654Z"}],"nvd":[{"id":"CVE-2021-22772","description":"A CWE-306: Missing Authentication for Critical Function vulnerability exists in Easergy T200 ((Modbus) SC2-04MOD-07000100 and earlier), Easergy T200 ((IEC104) SC2-04IEC-07000100 and earlier), and Easergy T200 ((DNP3) SC2-04DNP-07000102 and earlier) that could cause unauthorized operation when authentication is bypassed.","status":"published","published":"2021-07-21T15:15:15.117Z","modified":"2026-06-17T03:37:44.927Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:06:56.185362Z"}]}}