{"id":"CVE-2021-26264","aliases":["EUVD-2021-13081","GHSA-x46h-6fmr-m5fr"],"status":"published","title":"Emerson DeltaV Missing Authentication for Critical Function","description":"A specially crafted script could cause the DeltaV Distributed Control System Controllers (All Versions) to restart and cause a denial-of-service condition.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00187,"percentile":0.08441,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-306"],"published":"2022-01-28T19:09:49Z","modified":"2026-06-17T03:43:01Z","products":[{"vendor":"emerson","product":"deltav_distributed_control_system"},{"vendor":"emerson","product":"deltav_workstation"}],"references":[{"url":"https://www.cisa.gov/uscert/ics/advisories/icsa-21-355-04","tags":["x_refsource_MISC","x_transferred","Mitigation","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26264"},{"url":"https://github.com/advisories/GHSA-x46h-6fmr-m5fr"}],"sources":{"cve":[{"id":"CVE-2021-26264","title":"Emerson DeltaV Missing Authentication for Critical Function","description":"A specially crafted script could cause the DeltaV Distributed Control System Controllers (All Versions) to restart and cause a denial-of-service condition.","status":"published","published":"2022-01-28T19:09:49.871Z","modified":"2025-04-17T15:51:47.289Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:32:57.368269Z"}],"euvd":[{"id":"EUVD-2021-13081","description":"A specially crafted script could cause the DeltaV Distributed Control System Controllers (All Versions) to restart and cause a denial-of-service condition.","status":"published","published":"2022-01-28T19:09:49Z","modified":"2025-04-17T15:51:47Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T20:52:21.05399Z"}],"ghsa":[{"id":"GHSA-x46h-6fmr-m5fr","title":"A specially crafted script could cause the DeltaV Distributed Control System Controllers (All...","description":"A specially crafted script could cause the DeltaV Distributed Control System Controllers (All Versions) to restart and cause a denial-of-service condition.","status":"published","published":"2022-01-29T00:00:44Z","modified":"2025-04-17T18:31:56Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T15:01:36.915234Z"}],"nvd":[{"id":"CVE-2021-26264","description":"A specially crafted script could cause the DeltaV Distributed Control System Controllers (All Versions) to restart and cause a denial-of-service condition.","status":"published","published":"2022-01-28T20:15:10.927Z","modified":"2026-06-17T03:43:01.81Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:07:04.178977Z"}]}}