CVE-2025-64119Network attack vector

Unauthenticated access via client-side authentication

Published Jan 2, 2026 · Updated Jan 2, 2026

Client-side authentication in Nuvation Energy Battery Management System 2.3.9 and earlier allows remote attackers to bypass access controls. The published record maps the flaw to CWE-603: the BMS makes an authentication security decision in client-controlled logic, but the affected request and implementation are undisclosed. Network access is sufficient, with no prior privileges or user interaction; successful exploitation grants unauthenticated access to BMS functions, while the precise accessible operations remain undisclosed.

CVSS severity9.3
Critical
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Client-side authentication in Nuvation Energy Battery Management System 2.3.9 and earlier allows remote attackers to bypass access controls. The published record maps the flaw to CWE-603: the BMS makes an authentication security decision in client-controlled logic, but the affected request and implementation are undisclosed. Network access is sufficient, with no prior privileges or user interaction; successful exploitation grants unauthenticated access to BMS functions, while the precise accessible operations remain undisclosed.

The record

CVE
CVE-2025-64119
Published
Jan 2, 2026
Updated
Jan 2, 2026
Vendor
Nuvation Energy
Product
Nuvation BMS
Classifications
CWE-603, CAPEC-115, T0866
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 2, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.3.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Nuvation Energy · Nuvation BMSversion=0 <=2.3.9

Published CVSS scores

9.8Dragos, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3Dragos, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-603Use of Client-Side Authentication
CAPEC-115Authentication Bypass
T0866Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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