OpenC3 COSMOS before v6.0.2 was discovered to contain hardcoded credentials for the Service Account.
CVE-2025-28388
Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2025-06-13. NVD baseline CVSS 9.8; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.8
- EG Score
- 9.8(medium)
- EG Risk
- 75(Attend)EG Risk 75/100SSVC: Attend
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 computedSeverity98% × 45%Exploitation40% × 40%Automatability100% × 15%Action: Remediate soon — notable exploitation risk. - EPSS PROB
- 1%
- EPSS %ILE
- 48%
- KEV
- Not listed
Published
June 13, 2025
Last Modified
October 27, 2025
Advisory Details (5)
Auto-updated Sep 17, 2026OpenC3 Cosmos 6.0.0: A Security Assessment of an Open-Source Mission Framework – VisionSpace
https://visionspace.com/openc3-cosmos-a-security-assessment-of-an-open-source-mission-framework/v6.0.2
Patch available: OpenC3/cosmos v6.0.2
https://github.com/OpenC3/cosmos/releases/tag/v6.0.2Fix a few issues with iframes, script runner, and login
Fix merged in OpenC3/cosmos PR #1816 on 2025-01-09 — awaiting tagged release
https://github.com/OpenC3/cosmos/pull/1816/commits/195974a019f375f7c5a35f48e4151babb40649acFix a few issues with iframes, script runner, and login
Fix merged in OpenC3/cosmos PR #1816 on 2025-01-09 — awaiting tagged release
https://github.com/OpenC3/cosmos/pull/1816Affected Packages
(1 across 1 ecosystem)
PyPI(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| openc3 | 0.1.0 ... 6.0.0 (25 versions) | — | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 6× in last 7d / 27× 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.
Showing the most recent 100 of 146 total refreshes for this CVE.
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