Vulnerability Description
A hardcoded cryptographic client authentication key vulnerability exists in the robot testing framework component of Wärtsilä FOS-Onboard.
CVSS Score
9.1
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Related Weaknesses (CWE)
References
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-25
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-258-02
- https://www.wartsila.com/services-catalogue/engine-services-4-stroke/wartsila-ic
FAQ
What is CVE-2026-81855?
CVE-2026-81855 is a vulnerability with a CVSS score of 9.1 (CRITICAL). A hardcoded cryptographic client authentication key vulnerability exists in the robot testing framework component of Wärtsilä FOS-Onboard.
How severe is CVE-2026-81855?
CVE-2026-81855 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-81855?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.