CVE-2025-28389

CRITICAL

OpenC3 COSMOS 6.0.0 - Weak Password Requirements

Title source: llm

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

Core 2

Core References

Product

Exploit, Mitigation, Third Party Advisory

CVSS v3 9.8

EPSS 0.0054

EPSS Percentile 41.0%

Attack Vector NETWORK

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

Vulnrichment

Exploitation poc

Automatable yes

Technical Impact total

CWE

CWE-521

Status published

Products (1)

openc3/cosmos 6.0.0 (2 CPE variants)

Published Jun 13, 2025

Tracked Since Feb 18, 2026