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Vulnerability record · CVE-2025-28389 · published 13 June 2025

CVE-2025-28389: Openc3 cosmos weak password requirements vulnerability

OOpenc3 · Cosmos

Weak password requirements in OpenC3 COSMOS v6.0.0 allow attackers to bypass authentication via a brute force attack.

9.8 CVSS 3.1 Critical EPSS 0.60% · top 53.4% CWE-521 · Weak password requirements
9.8CVSS 3.1 base score
0.60%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

Weak password requirements in OpenC3 COSMOS v6.0.0 allow attackers to bypass authentication via a brute force attack.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://openc3.com/ Product
https://visionspace.com/openc3-cosmos-a-security-assessment-of-an-open-source-mission-framework/ ExploitMitigationThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2025-28386Openc3 cosmos code injection vulnerabilityA remote code execution (RCE) vulnerability in the Plugin Management component of OpenC3 COSMOS v6.0.0 allows attackers to execute arbitrary code via…EPSS 1.1%9.8CVE-2025-28388Openc3 cosmos hard-coded credentials vulnerabilityOpenC3 COSMOS before v6.0.2 was discovered to contain hardcoded credentials for the Service Account.EPSS 0.61%9.6CVE-2026-42087Openc3 cosmos sql injection vulnerabilityOpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. From version 6.7.0 to before …EPSS 0.45%9.1CVE-2025-28384Openc3 cosmos path traversal vulnerabilityAn issue in the /script-api/scripts/ endpoint of OpenC3 COSMOS before 6.1.0 allows attackers to execute a directory traversal.EPSS 0.89%8.1CVE-2026-42088Openc3 cosmos execution with unnecessary privileges vulnerabilityOpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. Prior to version 7.0.0-rc3, t…EPSS 0.49%8.1CVE-2026-42084Openc3 cosmos vulnerabilityOpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. Prior to versions 6.10.5 and …EPSS 0.44%7.5CVE-2025-28381Openc3 cosmos vulnerabilityA credential leak in OpenC3 COSMOS before v6.0.2 allows attackers to access service credentials as environment variables stored in all containers.EPSS 0.52%7.5CVE-2025-28382Openc3 cosmos path traversal vulnerabilityAn issue in the openc3-api/tables endpoint of OpenC3 COSMOS before 6.1.0 allows attackers to execute a directory traversal.EPSS 0.89%

Source: NIST National Vulnerability Database (record CVE-2025-28389), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.