{"id":"CVE-2020-24675","aliases":["EUVD-2020-17389","GHSA-8g6h-grf2-7grg"],"status":"published","title":"Weak Authentication in Symphony Plus","description":"In S+ Operations and S+ History, it is possible that an unauthenticated user could inject values to the Operations History server (or standalone S+ History server) and ultimately write values to the controlled process.","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":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.01206,"percentile":0.68714,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2020-12-22T21:22:05Z","modified":"2026-06-17T03:05:57Z","products":[{"vendor":"abb","product":"abb ability™ symphony® plus historian"},{"vendor":"abb","product":"abb ability™ symphony® plus operations"},{"vendor":"abb","product":"symphony_\\+_historian"},{"vendor":"abb","product":"symphony_\\+_operations"}],"references":[{"url":"https://search.abb.com/library/Download.aspx?DocumentID=2PAA123980\u0026LanguageCode=en\u0026DocumentPartId=\u0026Action=Launch","tags":["x_refsource_MISC","x_transferred","Mitigation","Vendor Advisory"]},{"url":"https://search.abb.com/library/Download.aspx?DocumentID=2PAA123982\u0026LanguageCode=en\u0026DocumentPartId=\u0026Action=Launch","tags":["x_refsource_MISC","x_transferred","Mitigation","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-24675"},{"url":"https://github.com/advisories/GHSA-8g6h-grf2-7grg"}],"sources":{"cve":[{"id":"CVE-2020-24675","title":"Weak Authentication in Symphony Plus","description":"In S+ Operations and S+ History, it is possible that an unauthenticated user could inject values to the Operations History server (or standalone S+ History server) and ultimately write values to the controlled process.","status":"published","published":"2020-12-22T21:22:05.808Z","modified":"2024-09-16T22:36:05.721Z","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":"cna"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:35:54.170199Z"}],"euvd":[{"id":"EUVD-2020-17389","description":"In S+ Operations and S+ History, it is possible that an unauthenticated user could inject values to the Operations History server (or standalone S+ History server) and ultimately write values to the controlled process.","status":"published","published":"2020-12-22T21:22:05Z","modified":"2024-09-16T22:36:05Z","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"}],"updated_at":"2026-11-03T00:55:01.59966Z"}],"ghsa":[{"id":"GHSA-8g6h-grf2-7grg","title":"In S+ Operations and S+ History, it is possible that an unauthenticated user could inject values...","description":"In S+ Operations and S+ History, it is possible that an unauthenticated user could inject values to the Operations History server (or standalone S+ History server) and ultimately write values to the controlled process.","status":"published","published":"2022-05-24T17:37:02Z","modified":"2023-01-29T05:05:48Z","cwes":["CWE-287"],"updated_at":"2026-11-02T14:45:52.819939Z"}],"nvd":[{"id":"CVE-2020-24675","description":"In S+ Operations and S+ History, it is possible that an unauthenticated user could inject values to the Operations History server (or standalone S+ History server) and ultimately write values to the controlled process.","status":"published","published":"2020-12-22T22:15:13.257Z","modified":"2026-06-17T03:05:57.827Z","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":"secondary"},{"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-287"],"updated_at":"2026-11-02T14:06:27.73474Z"}]}}