CVE-2025-64123

Nuvation Energy Multi-Stack Controller Proxy service allows arbitrary BMS access

7.9 High

Unintended Proxy or Intermediary vulnerability in Nuvation Energy Multi-Stack Controller (MSC) allows Network Boundary Bridging.This issue affects Multi-Stack Controller (MSC): through and including release 2.5.1.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: None

Exploit likelihood

0.32%Up 0.3 points since Jan 3, 2026

What each source reports

CVE List Score used 7.9

Nuvation Energy Multi-Stack Controller Proxy service allows arbitrary BMS access

Record: CVE-2025-64123
CVSS 4.0: 7.9 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/S:P
Weakness: CWE-441
Updated: 2026-11-02

EUVDEUVD-2025-206223 7.9

Record: EUVD-2025-206223
CVSS 4.0: 7.9 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/S:P
Updated: 2026-11-02

GitHub AdvisoriesGHSA-rw75-27g5-4c67 9.4

A vulnerability in Nuvation Energy nCloud VPN Service allowed Network Boundary Bridging.This...

A vulnerability in Nuvation Energy nCloud VPN Service allowed Network Boundary Bridging.This issue affected the nCloud VPN Service and was fixed on 2025-12-1 (December, 2025). End users do not have to take any action to mitigate the issue.

Record: GHSA-rw75-27g5-4c67
CVSS 4.0: 9.4 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-441
Updated: 2026-11-02

NVD 7.9

Record: CVE-2025-64123
CVSS 4.0: 7.9 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-441
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-64123 is a high vulnerability (CVSS 7.9) in Nuvation Energy Multi-stack Controller (msc), published January 2, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.32%, the 25th percentile. No source names a fixed version.