{"id":"CVE-2026-28205","aliases":["EUVD-2026-21009","GHSA-3r9q-7hff-7fm4"],"status":"published","title":"Initialization of a resource with an insecure default in OpenPLC_V3","description":"OpenPLC_V3 is vulnerable to an Initialization of a Resource with an Insecure Default vulnerability which could allow an attacker to gain access to the system by bypassing authentication via an API.","severity":{"version":"4.0","score":9.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00458,"percentile":0.40001,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1188"],"published":"2026-04-09T18:54:58Z","modified":"2026-06-17T10:28:19Z","products":[{"vendor":"openplc_v3","product":"openplc_v3"},{"vendor":"openplcproject","product":"openplc_v3_firmware"}],"references":[{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-25-345-10","tags":["government-resource","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-28205"},{"url":"https://github.com/advisories/GHSA-3r9q-7hff-7fm4"}],"sources":{"cve":[{"id":"CVE-2026-28205","title":"Initialization of a resource with an insecure default in OpenPLC_V3","description":"OpenPLC_V3 is vulnerable to an Initialization of a Resource with an Insecure Default vulnerability which could allow an attacker to gain access to the system by bypassing authentication via an API.","status":"published","published":"2026-04-09T18:54:58.694Z","modified":"2026-04-10T18:02:22.971Z","cvss":[{"version":"4.0","score":9.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H","level":"critical","assessor":"cna"}],"cwes":["CWE-1188"],"updated_at":"2026-11-02T14:20:01.969981Z"}],"euvd":[{"id":"EUVD-2026-21009","description":"OpenPLC_V3 is vulnerable to an Initialization of a Resource with an Insecure Default vulnerability which could allow an attacker to gain access to the system by bypassing authentication via an API.","status":"published","published":"2026-04-09T18:54:58Z","modified":"2026-04-10T18:02:22Z","cvss":[{"version":"4.0","score":9.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H","level":"critical"}],"updated_at":"2026-11-02T19:24:29.850635Z"}],"ghsa":[{"id":"GHSA-3r9q-7hff-7fm4","title":"OpenPLC_V3 is vulnerable to an Initialization of a Resource with an Insecure Default...","description":"OpenPLC_V3 is vulnerable to an Initialization of a Resource with an Insecure Default vulnerability which could allow an attacker to gain access to the system by bypassing authentication via an API.","status":"published","published":"2026-04-09T21:31:29Z","modified":"2026-04-28T18:30:26Z","cvss":[{"version":"4.0","score":9.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical"},{"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"}],"cwes":["CWE-1188"],"updated_at":"2026-11-02T15:07:41.814267Z"}],"nvd":[{"id":"CVE-2026-28205","description":"OpenPLC_V3 is vulnerable to an Initialization of a Resource with an Insecure Default vulnerability which could allow an attacker to gain access to the system by bypassing authentication via an API.","status":"published","published":"2026-04-09T19:16:23.37Z","modified":"2026-06-17T10:28:19.833Z","cvss":[{"version":"4.0","score":9.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","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"}],"cwes":["CWE-1188"],"updated_at":"2026-11-02T14:12:13.902911Z"}]}}