Vulnerability in Openc3 Cosmos
CVE-2025-28388
OpenC3 COSMOS before v6.0.2 was discovered to contain hardcoded credentials for the Service Account.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (46.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 46.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.006 · change: +0.001
Affected products
- Openc3 Cosmos — versions 6.0.0
Weakness classification (CWE)
References
- openc3.com/ (Product)
- visionspace.com/openc3-cosmos-a-security-assessment-of-an-open-source-mission-f… (Exploit, Third Party Advisory, Mitigation)
- github.com/OpenC3/cosmos/releases/tag/v6.0.2
- github.com/OpenC3/cosmos/pull/1816
- github.com/OpenC3/cosmos/pull/1816/commits/195974a019f375f7c5a35f48e4151babb406…
Frequently asked questions
- What is CVE-2025-28388?
- CVE-2025-28388 is a critical-severity vulnerability in Openc3 Cosmos, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2025-06-13.
- How severe is CVE-2025-28388?
- Critical severity. CVSS v3 base score is 9.8 out of 10.