CVE-2026-81855

criticalcovered by 1 sourcefirst seen 2026-09-15

View CSAF Summary Successful exploitation of these vulnerabilities could allow an attacker to deliver an unauthorized update, execute code, or extract credentials to allow the attacker to impersonate a privileged client. The following versions of Wärtsilä FOS-Onboard are affected: FOS-Onboard 5.07.0923.01 (CVE-2026-78225, CVE-2026-81855) CVSS Vendor Equipment Vulnerabilities v3 9.1 Wärtsilä Wärtsilä FOS-Onboard Use of Hard-coded Cryptographic Key Background Critical Infrastructure Sectors: Transportation Systems Countries/Areas Deployed: Worldwide Company Headquarters Location: Finland Vulnerabilities Expand All + CVE-2026-78225 A hardcoded cryptographic server key vulnerability exists in the deployer-ng Update Controller component of Wärtsilä FOS-Onboard. View CVE Details Affected Products Wärtsilä FOS-Onboard Vendor: Wärtsilä Product Version: Wärtsilä FOS-Onboard: 5.07.0923.01 Product Status: known_affected Remediations Mitigation Wärtsilä states that the vulnerabilities are not exploitable when the product is installed as recommended, and has developed a security patch. Users are also directed to contact Wärtsilä to obtain and install the patch. To obtain and install the latest patch, contact Wärtsilä: https://www.wartsila.com/services-catalogue/engine-services-4-stroke/wartsila-ics-patch-deployment#contact Relevant CWE: CWE-321 Use of Hard-coded Cryptographic Key Metrics CVSS Version Base Score Base Severity Vector String 3.1 9 CRITICAL CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H 4.0 9.5 CRITICAL CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H CVE-2026-81855 A hardcoded cryptographic client authentication key vulnerability exists in the robot testing framework component of Wärtsilä FOS-Onboard. View CVE Details Affected Products Wärtsilä FOS-Onboard Vendor: Wärtsilä Product Version: Wärtsilä FOS-Onboard: 5.07.0923.01 Product Status: known_affected Remediations Mitigation Wärtsilä states that the vulnerabilities are not exploitable when the produ

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Advisory coverage (1)

criticalWärtsilä FOS-Onboardcisa · 2026-09-15

External references

NVD record for CVE-2026-81855

CVE.org record

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