ICSA-26-258-02

Critical Wärtsilä FOS-Onboard Maritime Navigation Hardcoded Key Flaws Expose Vessel Fleets to Remote Takeover CVE-2026-78225

CISA issues advisory ICSA-26-258-02 for critical hardcoded cryptographic key flaws in Wärtsilä FOS-Onboard, allowing remote attackers to hijack navigation systems.