CVE-2026-78225

Wärtsilä FOS-Onboard Use of Hard-coded Cryptographic Key

Published Sep 15, 2026 CVSS 4.0 · 9.5 Critical EPSS < 1% KEV · Not listed
Description
A hardcoded cryptographic server key vulnerability exists in the deployer-ng Update Controller component of Wärtsilä FOS-Onboard.

Remediation

Vendor Solution

Wärtsilä states that the vulnerabilities are not exploitable when the product is installed as recommended and has developed a security patch. The patch (version 5.08.4052.01) can be found on the Wärtsilä FOS download site https://www.wartsila.com/marine/products/data-service-downloads/fos-downloads . Users can also contact Wärtsilä https://www.wartsila.com/services-catalogue/engine-services-4-stroke/wartsila-ics-patch-deployment#contact to obtain and install the patch.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Wärtsilä
Wärtsilä fos-onboard
Vendors & Products Wärtsilä
Wärtsilä fos-onboard
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A hardcoded cryptographic server key vulnerability exists in the deployer-ng Update Controller component of Wärtsilä FOS-Onboard.
Title Wärtsilä FOS-Onboard Use of Hard-coded Cryptographic Key
Weaknesses CWE-321
References
Metrics cvssV3_1

{'score': 9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.5, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
icscert
Published
Updated
Sep 24, 2026, 9:37 PM
Reserved
Sep 8, 2026, 4:53 PM
Status
Deferred
Published
Sep 15, 2026, 10:17 PM
Modified
Sep 24, 2026, 10:17 PM