{"id":"CVE-2026-81855","aliases":["EUVD-2026-80012","GHSA-j2xg-7hvh-hxm5"],"status":"published","title":"Wärtsilä FOS-Onboard Use of Hard-coded Cryptographic Key","description":"A hardcoded cryptographic client authentication key vulnerability exists in the robot testing framework component of Wärtsilä FOS-Onboard.","severity":{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00589,"percentile":0.48627,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-321"],"published":"2026-09-15T21:31:59Z","modified":"2026-09-25T00:33:03Z","products":[{"vendor":"wärtsilä","product":"fos-onboard"}],"references":[{"url":"https://www.wartsila.com/marine/products/data-service-downloads/fos-downloads"},{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-26-258-02"},{"url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-258-02.json"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-81855"},{"url":"https://www.wartsila.com/services-catalogue/engine-services-4-stroke/wartsila-ics-patch-deployment#contact"},{"url":"https://github.com/advisories/GHSA-j2xg-7hvh-hxm5"}],"sources":{"cve":[{"id":"CVE-2026-81855","title":"Wärtsilä FOS-Onboard Use of Hard-coded Cryptographic Key","description":"A hardcoded cryptographic client authentication key vulnerability exists in the robot testing framework component of Wärtsilä FOS-Onboard.","status":"published","published":"2026-09-15T21:31:59.632Z","modified":"2026-09-24T21:36:18.365Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"critical","assessor":"cna"},{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"cna"}],"cwes":["CWE-321"],"updated_at":"2026-11-02T13:36:18.075535Z"}],"euvd":[{"id":"EUVD-2026-80012","description":"A hardcoded cryptographic client authentication key vulnerability exists in the robot testing framework component of Wärtsilä FOS-Onboard.","status":"published","published":"2026-09-15T21:31:59Z","modified":"2026-09-24T21:36:18Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"critical"}],"updated_at":"2026-11-02T17:27:56.296478Z"}],"ghsa":[{"id":"GHSA-j2xg-7hvh-hxm5","title":"A hardcoded cryptographic client authentication key vulnerability exists in the robot testing...","description":"A hardcoded cryptographic client authentication key vulnerability exists in the robot testing framework component of Wärtsilä FOS-Onboard.","status":"published","published":"2026-09-16T00:31:31Z","modified":"2026-09-25T00:33:03Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/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":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-321"],"updated_at":"2026-11-02T15:12:24.174061Z"}],"nvd":[{"id":"CVE-2026-81855","description":"A hardcoded cryptographic client authentication key vulnerability exists in the robot testing framework component of Wärtsilä FOS-Onboard.","status":"published","published":"2026-09-15T22:17:03.197Z","modified":"2026-09-24T22:17:01.88Z","cvss":[{"version":"4.0","score":9.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/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":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"secondary"}],"cwes":["CWE-321"],"updated_at":"2026-11-02T14:12:48.287983Z"}]}}