{"cve":{"cve_id":"CVE-2020-8481","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.0181,"epss_percentile":0.7578,"epss_as_of":"2026-06-23","description":"For ABB products ABB Ability™ System 800xA and related system extensions versions 5.1, 6.0 and 6.1, Compact HMI versions 5.1 and 6.0, Control Builder Safe 1.0, 1.1 and 2.0, Symphony Plus -S+ Operations 3.0 to 3.2 Symphony Plus -S+ Engineering 1.1 to 2.2, Composer Harmony 5.1, 6.0 and 6.1, Melody Composer 5.3, 6.1/6.2 and SPE for Melody 1.0SPx (Composer 6.3), Harmony OPC Server (HAOPC) Standalone 6.0, 6.1 and 7.0, ABB Ability™ System 800xA/ Advant® OCS Control Builder A 1.3 and 1.4, Advant® OCS AC100 OPC Server 5.1, 6.0 and 6.1, Composer CTK 6.1 and 6.2, AdvaBuild 3.7 SP1 and SP2, OPCServer for MOD 300 (non-800xA) 1.4, OPC Data Link 2.1 and 2.2, Knowledge Manager 8.0, 9.0 and 9.1, Manufacturing Operations Management 1812 and 1909, confidential data is written in an unprotected file. An attacker who successfully exploited this vulnerability could take full control of the computer.","published_at":"2020-04-29T01:30:56Z","last_modified_at":null,"cvss_v3_score":9.8,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_v3_severity":"CRITICAL","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-200"],"nvd_references":["https://search.abb.com/library/Download.aspx?DocumentID=2PAA121231&LanguageCode=en&DocumentPartId=&Action=Launch","https://search.abb.com/library/Download.aspx?DocumentID=2PAA121230&LanguageCode=en&DocumentPartId=&Action=Launch"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:14:36.718405Z"},"effective_severity":"CRITICAL","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"abb-ability-system-800xa","product_name":"ABB Ability System 800xA","version_start":"6.1","version_start_inclusive":true,"version_end":"6.1","version_end_inclusive":true,"cpe23_uri":"cve5:abb:abb-ability-system-800xa:6.1:6.1"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"abb-ability-system-800xa","product_name":"ABB Ability System 800xA","version_start":"5.1","version_start_inclusive":true,"version_end":"5.1","version_end_inclusive":true,"cpe23_uri":"cve5:abb:abb-ability-system-800xa:5.1:5.1"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"abb-ability-system-800xa","product_name":"ABB Ability System 800xA","version_start":"6.0","version_start_inclusive":true,"version_end":"6.0","version_end_inclusive":true,"cpe23_uri":"cve5:abb:abb-ability-system-800xa:6.0:6.0"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"advabuild","product_name":"AdvaBuild","version_start":"3.7 SP1","version_start_inclusive":true,"version_end":"3.7 SP1","version_end_inclusive":true,"cpe23_uri":"cve5:abb:advabuild:3.7 SP1:3.7 SP1"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"advabuild","product_name":"AdvaBuild","version_start":"3.7 SP2","version_start_inclusive":true,"version_end":"3.7 SP2","version_end_inclusive":true,"cpe23_uri":"cve5:abb:advabuild:3.7 SP2:3.7 SP2"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"advant-ocs-ac-100-ops-server","product_name":"Advant  OCS AC 100 OPS Server","version_start":"6.0","version_start_inclusive":true,"version_end":"6.0","version_end_inclusive":true,"cpe23_uri":"cve5:abb:advant-ocs-ac-100-ops-server:6.0:6.0"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"advant-ocs-ac-100-ops-server","product_name":"Advant  OCS AC 100 OPS Server","version_start":"5.1","version_start_inclusive":true,"version_end":"5.1","version_end_inclusive":true,"cpe23_uri":"cve5:abb:advant-ocs-ac-100-ops-server:5.1:5.1"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"advant-ocs-ac-100-ops-server","product_name":"Advant  OCS AC 100 OPS Server","version_start":"6.1","version_start_inclusive":true,"version_end":"6.1","version_end_inclusive":true,"cpe23_uri":"cve5:abb:advant-ocs-ac-100-ops-server:6.1:6.1"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"advant-ocs-control-builder-a","product_name":"Advant OCS Control Builder A","version_start":"1.4","version_start_inclusive":true,"version_end":"1.4","version_end_inclusive":true,"cpe23_uri":"cve5:abb:advant-ocs-control-builder-a:1.4:1.4"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"advant-ocs-control-builder-a","product_name":"Advant OCS Control Builder A","version_start":"1.3","version_start_inclusive":true,"version_end":"1.3","version_end_inclusive":true,"cpe23_uri":"cve5:abb:advant-ocs-control-builder-a:1.3:1.3"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"central-licensing-system","product_name":"Central Licensing System","version_start":"5.1","version_start_inclusive":true,"version_end":"5*","version_end_inclusive":false,"cpe23_uri":"cve5:abb:central-licensing-system:5.1:5*"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"compact-hmi","product_name":"Compact HMI","version_start":"6.0","version_start_inclusive":true,"version_end":"6.0","version_end_inclusive":true,"cpe23_uri":"cve5:abb:compact-hmi:6.0:6.0"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"compact-hmi","product_name":"Compact HMI","version_start":"5.1","version_start_inclusive":true,"version_end":"5.1","version_end_inclusive":true,"cpe23_uri":"cve5:abb:compact-hmi:5.1:5.1"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"composer-ctk","product_name":"Composer CTK","version_start":"6.2","version_start_inclusive":true,"version_end":"6.2","version_end_inclusive":true,"cpe23_uri":"cve5:abb:composer-ctk:6.2:6.2"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"composer-ctk","product_name":"Composer CTK","version_start":"6.1","version_start_inclusive":true,"version_end":"6.1","version_end_inclusive":true,"cpe23_uri":"cve5:abb:composer-ctk:6.1:6.1"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"composer-harmony","product_name":"Composer Harmony","version_start":"5.1","version_start_inclusive":true,"version_end":"5.1","version_end_inclusive":true,"cpe23_uri":"cve5:abb:composer-harmony:5.1:5.1"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"composer-harmony","product_name":"Composer Harmony","version_start":"6.0","version_start_inclusive":true,"version_end":"6.0","version_end_inclusive":true,"cpe23_uri":"cve5:abb:composer-harmony:6.0:6.0"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"composer-harmony","product_name":"Composer Harmony","version_start":"6.1","version_start_inclusive":true,"version_end":"6.1","version_end_inclusive":true,"cpe23_uri":"cve5:abb:composer-harmony:6.1:6.1"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"composer-melody","product_name":"Composer Melody","version_start":"5.3","version_start_inclusive":true,"version_end":"5.3","version_end_inclusive":true,"cpe23_uri":"cve5:abb:composer-melody:5.3:5.3"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"composer-melody","product_name":"Composer Melody","version_start":"6","version_start_inclusive":true,"version_end":"6.3","version_end_inclusive":true,"cpe23_uri":"cve5:abb:composer-melody:6:6.3"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"control-builder-safe","product_name":"Control Builder Safe","version_start":"2.0","version_start_inclusive":true,"version_end":"2.0","version_end_inclusive":true,"cpe23_uri":"cve5:abb:control-builder-safe:2.0:2.0"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"control-builder-safe","product_name":"Control Builder Safe","version_start":"1.1","version_start_inclusive":true,"version_end":"1.1","version_end_inclusive":true,"cpe23_uri":"cve5:abb:control-builder-safe:1.1:1.1"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"control-builder-safe","product_name":"Control Builder Safe","version_start":"1.0","version_start_inclusive":true,"version_end":"1.0","version_end_inclusive":true,"cpe23_uri":"cve5:abb:control-builder-safe:1.0:1.0"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"harmony-opc-server-standalone","product_name":"Harmony OPC Server Standalone","version_start":"7.0","version_start_inclusive":true,"version_end":"7.0","version_end_inclusive":true,"cpe23_uri":"cve5:abb:harmony-opc-server-standalone:7.0:7.0"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"harmony-opc-server-standalone","product_name":"Harmony OPC Server Standalone","version_start":"6.1","version_start_inclusive":true,"version_end":"6.1","version_end_inclusive":true,"cpe23_uri":"cve5:abb:harmony-opc-server-standalone:6.1:6.1"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"harmony-opc-server-standalone","product_name":"Harmony OPC Server Standalone","version_start":"6.0","version_start_inclusive":true,"version_end":"6.0","version_end_inclusive":true,"cpe23_uri":"cve5:abb:harmony-opc-server-standalone:6.0:6.0"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"knowledge-manager","product_name":"Knowledge Manager","version_start":"8.0","version_start_inclusive":true,"version_end":"8.0","version_end_inclusive":true,"cpe23_uri":"cve5:abb:knowledge-manager:8.0:8.0"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"knowledge-manager","product_name":"Knowledge Manager","version_start":"9.0","version_start_inclusive":true,"version_end":"9.0","version_end_inclusive":true,"cpe23_uri":"cve5:abb:knowledge-manager:9.0:9.0"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"knowledge-manager","product_name":"Knowledge Manager","version_start":"9.1","version_start_inclusive":true,"version_end":"9.1","version_end_inclusive":true,"cpe23_uri":"cve5:abb:knowledge-manager:9.1:9.1"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"manufacturing-operations-management","product_name":"Manufacturing Operations Management","version_start":"1812","version_start_inclusive":true,"version_end":"1812","version_end_inclusive":true,"cpe23_uri":"cve5:abb:manufacturing-operations-management:1812:1812"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"manufacturing-operations-management","product_name":"Manufacturing Operations Management","version_start":"1909","version_start_inclusive":true,"version_end":"1909","version_end_inclusive":true,"cpe23_uri":"cve5:abb:manufacturing-operations-management:1909:1909"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"opc-data-link","product_name":"OPC Data Link","version_start":"2.1","version_start_inclusive":true,"version_end":"2.1","version_end_inclusive":true,"cpe23_uri":"cve5:abb:opc-data-link:2.1:2.1"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"opc-data-link","product_name":"OPC Data Link","version_start":"2.2","version_start_inclusive":true,"version_end":"2.2","version_end_inclusive":true,"cpe23_uri":"cve5:abb:opc-data-link:2.2:2.2"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"opc-server-for-mod-300-non-800xa","product_name":"OPC Server for Mod 300 (non-800xA)","version_start":"1.4","version_start_inclusive":true,"version_end":"1.4","version_end_inclusive":true,"cpe23_uri":"cve5:abb:opc-server-for-mod-300-non-800xa:1.4:1.4"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"symphony-plus-s-engineering","product_name":"Symphony Plus S+ Engineering","version_start":"1.1","version_start_inclusive":true,"version_end":"2.2","version_end_inclusive":true,"cpe23_uri":"cve5:abb:symphony-plus-s-engineering:1.1:2.2"},{"vendor_slug":"abb","vendor_name":"ABB","product_slug":"symphony-plus-s-operations","product_name":"Symphony Plus S+ Operations","version_start":"3","version_start_inclusive":true,"version_end":"3.2","version_end_inclusive":true,"cpe23_uri":"cve5:abb:symphony-plus-s-operations:3:3.2"}],"exploit_refs":[],"news":[],"references":[{"url":"https://search.abb.com/library/Download.aspx?DocumentID=2PAA121231&LanguageCode=en&DocumentPartId=&Action=Launch","source_type":"MISC","tags":[]},{"url":"https://search.abb.com/library/Download.aspx?DocumentID=2PAA121230&LanguageCode=en&DocumentPartId=&Action=Launch","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2020-04-29T01:30:56Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:04:28.962015Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:04:28.962015Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:04:28.962015Z","label":"CVSS score revised","source":"cvelistv5"}]}