CVE-2025-64121
📋 TL;DR
An authentication bypass vulnerability in Nuvation Energy Multi-Stack Controller (MSC) allows attackers to access protected functionality without valid credentials. This affects MSC versions from 2.3.8 up to but not including 2.5.1. The vulnerability leverages alternate paths or channels to circumvent authentication mechanisms.
💻 Affected Systems
- Nuvation Energy Multi-Stack Controller (MSC)
📦 What is this software?
Nplatform by Nuvationenergy
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of energy management systems, unauthorized control of battery stacks, manipulation of energy distribution, and potential physical damage to equipment.
Likely Case
Unauthorized access to monitoring data, configuration changes, and potential disruption of energy management operations.
If Mitigated
Limited impact with proper network segmentation and access controls preventing exploitation attempts.
🎯 Exploit Status
Authentication bypass vulnerabilities typically have low exploitation complexity once the alternate path/channel is identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.5.1
Vendor Advisory: https://www.dragos.com/community/advisories/CVE-2025-64119
Restart Required: Yes
Instructions:
1. Download MSC version 2.5.1 from Nuvation Energy support portal. 2. Backup current configuration. 3. Apply the update following vendor documentation. 4. Restart the controller. 5. Verify successful update and functionality.
🔧 Temporary Workarounds
Network Segmentation
allIsolate MSC controllers from untrusted networks and restrict access to authorized management systems only.
Access Control Lists
allImplement strict firewall rules to limit connections to MSC controllers from specific IP addresses only.
🧯 If You Can't Patch
- Implement network-level authentication (VPN, jump hosts) to restrict access to MSC management interfaces.
- Deploy intrusion detection systems to monitor for authentication bypass attempts and unauthorized access patterns.
🔍 How to Verify
Check if Vulnerable:
Check MSC web interface or CLI for current firmware version. If version is between 2.3.8 and 2.5.1 (excluding 2.5.1), the system is vulnerable.Check Version:
Check via web interface at /status or use vendor-specific CLI command (consult documentation)Verify Fix Applied:
After patching, verify the firmware version shows 2.5.1 or higher and test authentication mechanisms to ensure they cannot be bypassed.📡 Detection & Monitoring
Log Indicators:
- Failed authentication attempts followed by successful access
- Access to protected endpoints without authentication logs
- Unusual access patterns from unexpected IP addresses
Network Indicators:
- Direct connections to MSC management ports from unauthorized sources
- Traffic patterns suggesting authentication bypass attempts
SIEM Query:
source="msc_logs" AND (event_type="auth_failure" AND event_type="access_granted" within 5s) OR (http_status=200 AND NOT auth_success=true)