CVE-2025-28389

CRITICAL

OpenC3 COSMOS v6.0.0 - Auth Bypass

Title source: llm
STIX 2.1

Description

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

References (2)

Scores

CVSS v3 9.8
EPSS 0.0037
EPSS Percentile 59.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact total

Details

CWE
CWE-521
Status published
Products (1)
openc3/cosmos 6.0.0 (2 CPE variants)
Published Jun 13, 2025
Tracked Since Feb 18, 2026