CVE-2025-28389

| EUVD-2025-18268 CRITICAL
2025-06-13 [email protected]
9.8
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
EUVD ID Assigned
Mar 14, 2026 - 21:34 euvd
EUVD-2025-18268
Analysis Generated
Mar 14, 2026 - 21:34 vuln.today
PoC Detected
Jun 17, 2025 - 19:42 vuln.today
Public exploit code
CVE Published
Jun 13, 2025 - 14:15 nvd
CRITICAL 9.8

Description

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

Analysis

Critical authentication bypass vulnerability in OpenC3 COSMOS v6.0.0 caused by weak password requirements that enable brute force attacks. An unauthenticated remote attacker can exploit this with no user interaction to gain full control over the affected system, including confidentiality, integrity, and availability compromise. The CVSS 9.8 severity and network-based attack vector indicate this poses significant risk to any organization running the vulnerable version without additional protective controls.

Technical Context

The vulnerability stems from CWE-521 (Weak Password Requirements), a foundational authentication weakness that fails to enforce sufficient password complexity, length, or entropy standards. In OpenC3 COSMOS v6.0.0, the authentication mechanism likely permits passwords with minimal complexity constraints (e.g., no length minimum, no character diversity requirements, or trivial default credentials), making the system susceptible to systematic password enumeration attacks. The absence of robust rate-limiting or account lockout mechanisms (common in weak authentication schemes) exacerbates the risk. This affects the COSMOS industrial control system platform, specifically CPE identifiers matching 'openc3:cosmos:6.0.0', which is widely deployed in critical infrastructure monitoring and orchestration environments.

Affected Products

COSMOS (['6.0.0'])

Priority Score

69
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +49
POC: +20

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CVE-2025-28389 vulnerability details – vuln.today

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