CVE-2026-78225

CRITICALPre-NVD 9.09.0—
EchelonGraph scoreHIGH confidence

Score 9.0 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-16. a secondary CVSS source baseline 9.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
9.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.0Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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

CVSS v3
9.0
EG Score
9.0(high)
EG Risk
41(Track)
EG Risk 41/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
35%
KEV
Not listed

Published

September 15, 2026

Last Modified

September 16, 2026

Advisory Details (2)

Auto-updated Sep 15, 2026
Patch available. Sources: cisa.
cisa Patch Available

Wärtsilä FOS-Onboard | CISA

https://www.cisa.gov/news-events/ics-advisories/icsa-26-258-02
generic

Wärtsilä ICS patch deployment

https://www.wartsila.com/services-catalogue/engine-services-4-stroke/wartsila-ics-patch-deployment#contact

Vendor Advisories for CVE-2026-78225(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 33× in last 7d / 33× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-19 14:17 UTCGHSA enrichment
  2. 2026-09-19 10:01 UTCGHSA enrichment
  3. 2026-09-19 05:46 UTCGHSA enrichment
  4. 2026-09-19 01:30 UTCGHSA enrichment
  5. 2026-09-18 21:14 UTCEG score recompute
  6. 2026-09-18 21:14 UTCGHSA enrichment
  7. 2026-09-18 19:28 UTCEPSS rescore
  8. 2026-09-18 16:52 UTCGHSA enrichment
  9. 2026-09-18 12:36 UTCGHSA enrichment
  10. 2026-09-18 08:19 UTCGHSA enrichment
  11. 2026-09-18 04:01 UTCGHSA enrichment
  12. 2026-09-17 23:45 UTCEG score recompute
  13. 2026-09-17 23:45 UTCGHSA enrichment
  14. 2026-09-17 18:22 UTCGHSA enrichment
  15. 2026-09-17 12:55 UTCGHSA enrichment
  16. 2026-09-17 08:23 UTCGHSA enrichment
  17. 2026-09-17 04:07 UTCGHSA enrichment
  18. 2026-09-16 23:49 UTCGHSA enrichment
  19. 2026-09-16 19:33 UTCGHSA enrichment
  20. 2026-09-16 19:25 UTCEG score recompute
  21. 2026-09-16 19:25 UTCGHSA enrichment
  22. 2026-09-16 18:26 UTCEG score recompute
  23. 2026-09-16 18:26 UTCGHSA enrichment
  24. 2026-09-16 15:33 UTCEG score recompute
  25. 2026-09-16 15:33 UTCGHSA enrichment
Show 8 more
  1. 2026-09-16 14:08 UTCEPSS rescore
  2. 2026-09-16 11:07 UTCGHSA enrichment
  3. 2026-09-16 06:51 UTCGHSA enrichment
  4. 2026-09-16 02:36 UTCEG score recompute
  5. 2026-09-16 02:36 UTCGHSA enrichment
  6. 2026-09-15 22:20 UTCEG score recompute
  7. 2026-09-15 21:33 UTCEG score recompute
  8. 2026-09-15 21:32 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-78225?
CVE-2026-78225 is a critical vulnerability published on September 15, 2026. A hardcoded cryptographic server key vulnerability exists in the deployer-ng Update Controller component of Wärtsilä FOS-Onboard.
When was CVE-2026-78225 disclosed?
CVE-2026-78225 was first published in the National Vulnerability Database on September 15, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-78225 actively exploited?
CVE-2026-78225 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 64.7% of all scored CVEs.
What is the CVSS score of CVE-2026-78225?
CVE-2026-78225 has a CVSS v3 base score of 9.0 (NVD).
How do I remediate CVE-2026-78225?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-78225, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-78225

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