CVE-2025-64119
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedA vulnerability in Nuvation Battery Management System allows Authentication Bypass.This issue affects Battery Management System: through 2.3.9.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceAuthentication bypass vulnerability in Nuvation Battery Management System allows remote unauthenticated attackers to circumvent authentication mechanisms and gain unauthorized access to the BMS, potentially enabling control over battery systems and exposure of sensitive operational data.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- Authentication
- Y
- User interaction
- None
- Scope
- P
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/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
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify Nuvation BMS software versionLocate the installed Nuvation BMS software version through the system's about page, command-line version flag, or configuration file. Common locations include the software's web interface (typically under Help > About), the executable's properties, or the installation directory.Affected if The installed version is 2.3.9 or lower.
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Verify authentication is configuredCheck if the BMS authentication mechanism is enabled. This may be visible in the BMS web interface under Security or Access settings, or in the configuration file that defines user authentication requirements.Affected if Authentication is disabled or misconfigured, allowing unauthenticated access.
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Assess network exposureDetermine if the BMS web interface or management port is exposed to untrusted networks. Check firewall rules, NAT configurations, and network segment placement.Affected if The BMS management interface is directly accessible from the internet or an untrusted network segment.
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Review access logs for unauthorized attemptsExamine BMS access logs for successful or failed authentication attempts, particularly from unexpected IP addresses, unusual timing patterns, or requests to protected endpoints without credentials.Affected if Logs show successful unauthenticated access or authentication bypass indicators.
A user is affected if their Nuvation BMS software is version 2.3.9 or lower AND the system is configured with authentication that can be bypassed, especially if network-accessible.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpgrade Nuvation BMS to a version beyond 2.3.9. If immediate patching is not feasible, implement network segmentation, restrict external access to the BMS interface, and monitor for unauthorized access attempts.
- Consultation8.0 h
- Implementation24.0 h
- Testing16.0 h
- Review / QA8.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-64119 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-64119 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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