Paper/Archive/CVE-2026-78225

CVE-2026-78225

Wärtsilä FOS-Onboard — Wärtsilä FOS-Onboard Use of Hard-coded Cryptographic Key

EPSS 0.5%CVSS 9.5

critical.is priorityof 100

37

CVSS 9.5 (CNA)9.5 / 10 × 3028.5 Not in CISA KEV+300.0 EPSS percentile 43.4.434 × 208.7 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

A hardcoded cryptographic server key vulnerability exists in the deployer-ng Update Controller component of Wärtsilä FOS-Onboard.

Affected

ProductAffectedFixed inSource

FOS-Onboard5.07.0923.015.08.4052.01CNA

Scores by source

icscert (CNA)9.5CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

icscert (CNA)9.0CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

refwartsila.com/marine/products/data-service-downloads/fos-downloads refcisa.gov/news-events/ics-advisories/icsa-26-258-02 refgithub.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-258-02.json