External risk intelligence

Nuvation Battery Management System Authentication Bypass.

CVE advisorySeverity: CRITICAL (CVSS 9.3)

CVE-2025-64119

The vulnerability affects a Battery Management System, which is typically deployed within industrial or isolated internal control networks. While network-reachable in some environments, these systems are rarely exposed directly to the public internet, usually sitting behind internal security controls or gateways.

Authentication Bypass

Halo Surface Signal: 2 out of 5 — less likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

A critical vulnerability has been identified in the Nuvation Battery Management System that could allow unauthorized access. This issue affects specific versions of the system, and its potential impact on business operations warrants careful consideration of its relevance and exposure within our environment.

Bypass access controls for battery management.
High severity system flaw with direct access.
Confirm relevance and exposure to our systems.

Attack Path

How an attacker could exploit the issue

Attackers can bypass authentication on the Nuvation Battery Management System. This vulnerability could allow an attacker to gain unauthorized access to the system, potentially leading to control over critical battery functions. The exact impact is not specified, but the severity indicates a significant risk.

No authentication required for access.
Bypass authentication mechanism.
Unauthorized system access and control.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could allow an unauthenticated attacker to bypass authentication mechanisms within the Nuvation Battery Management System. When supported by the advisory, this could lead to unauthorized access and potential manipulation of the system's functions.

System access and control.
Unauthenticated network access.
Unauthorized system control.

Operational Fix

Recommended remediation, mitigation, and detection steps

The Nuvation Battery Management System is likely managed by operations or industrial control system (ICS) teams, potentially with oversight from IT infrastructure or vendor management. The immediate first step is to confirm the presence and accessibility of this system within your environment, identify its business criticality, and locate the responsible owner to plan for remediation.

Confirm system ownership and criticality.
Verify network exposure and accessibility.
Plan remediation based on risk assessment.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

Free EASM Trial See How Signal Works

Frequently asked questions

What is the Nuvation Battery Management System?

The Nuvation Battery Management System is a specialized hardware and software solution designed to monitor, balance, and protect battery packs. It is commonly used in industrial energy storage, electric vehicles, and critical power infrastructure to ensure safe operation, track cell health, and manage power distribution.

What does Authentication Bypass mean for CVE-2025-64119?

This vulnerability, classified under CWE-603, indicates a flaw where the system's security checks can be completely circumvented. Instead of requiring valid credentials to manage the battery, an attacker could interact with the system as if they were an authorized administrator, granting them control over core management functions.

How does an attacker trigger this vulnerability?

An attacker triggers this bug by sending specific network requests to the system that the software fails to validate properly. Critically, this does not require any prior user interaction, stolen passwords, or legitimate login sessions, allowing the system to be accessed directly over the network.

Is my Nuvation system at risk according to Halo Surface Signal?

Halo Surface Signal indicates that while this is a network-based vulnerability, the system's risk is currently labeled as Unlikely. This is because these management systems are typically found inside isolated industrial control networks rather than directly exposed to the public internet.

How should I respond if I use this software?

First, identify which devices in your environment are running affected versions. Locate the internal team responsible for these systems, such as industrial control or operations staff, and determine if the device is reachable from untrusted network segments while planning for future updates.

References

www.dragos.com/community/advisories/CVE-2025-64119

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.