CVE-2025-28389 json
Weak password requirements in OpenC3 COSMOS v6.0.0 allow attackers to bypass authentication via a brute force attack.
published 2025-06-13 16 mo ago modified 2026-06-17 4 mo ago also PYSEC-2025-150 , EUVD-2025-18268
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 48%
- public exploits
- 0
- none known
Summary
Weak password requirements in OpenC3 COSMOS v6.0.0 allow attackers to bypass authentication via a brute force attack.
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- total
- Assessed
- 16 mo ago
Exploit prediction
0.60% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- visionspace.com https://visionspace.com/openc3-cosmos-a-security-assessment-of-an-open-source-mission-framework/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| OSV | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | openc3 | <=6.0.0 |
no fix listed |
Classification
- Weakness
-
- CWE-521 Weak Password Requirements
References
-
visionspace.com
/openc3-cosmos-a-security-assessment-of-an-open-source-mission-framework/
exploit, mitigation, third-party-advisory, evidence
-
openc3.com
/
product, web
Sources
- CVE List CVE-2025-28389
- NVD CVE-2025-28389
- OSV PYSEC-2025-150
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