CVE-2025-64121

Nuvation Energy Multi-Stack Controller Authentication Bypass

10.0 Critical

Authentication Bypass Using an Alternate Path or Channel vulnerability in Nuvation Energy Multi-Stack Controller (MSC) allows Authentication Bypass.This issue affects Multi-Stack Controller (MSC): from 2.3.8 before 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: High
Integrity: High
Availability: High

Exploit likelihood

0.40%Up 0.3 points since Jan 3, 2026

What each source reports

CVE List Score used 10.0

Nuvation Energy Multi-Stack Controller Authentication Bypass

Record: CVE-2025-64121
CVSS 4.0: 10.0 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/S:P/AU:Y
Weakness: CWE-288
Updated: 2026-11-02

EUVDEUVD-2025-206225 10.0

Record: EUVD-2025-206225
CVSS 4.0: 10.0 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/S:P/AU:Y
Updated: 2026-11-02

GitHub AdvisoriesGHSA-fwx4-5874-4gvg 10.0

Authentication Bypass Using an Alternate Path or Channel vulnerability in Nuvation Energy Multi...

Record: GHSA-fwx4-5874-4gvg
CVSS 4.0: 10.0 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/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:Y/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-288
Updated: 2026-11-02

NVD 10.0

Record: CVE-2025-64121
CVSS 4.0: 10.0 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/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:Y/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-288
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-2025-64121 is a critical vulnerability (CVSS 10.0) 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 0.40%, the 34th percentile. No source names a fixed version.