CVE-2025-64121: Authentication Bypass Using an Alternate Path or Channel vulnerability in Nuvation Energy Multi-Stack Controll

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2025-64121 is a critical-severity flaw (CVSS 9.8) affecting nplatform. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 66%)
CISA exploited list	No
Weakness	CWE-288
Published	2026-01-02
Last modified	2026-10-07

Publisher (CNA): Dragos, Inc. · Vendor: nuvationenergy

Last updated 2026-10-07 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-01-02 22:15 UTCPublished CVE record published
2026-10-07 11:10 UTCUpdated Record last modified

nuvationenergy nplatform UPGRADE

Affected: >= 2.3.8 and < 2.5.1

Fixed in: 2.5.1

Safe to downgrade to: a release before 2.3.8

1. Check installed version

apt-cache policy nplatform || rpm -q nplatform || nplatform --version

2. UPGRADE to 2.5.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade nplatform

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade nplatform

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 2.3.8 (Debian / Ubuntu)

apt-cache madison nplatform sudo apt install nplatform=<VERSION_BEFORE_2.3.8> sudo apt-mark hold nplatform

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list nplatform sudo dnf downgrade nplatform-<VERSION_BEFORE_2.3.8> sudo dnf versionlock add nplatform

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-64121?

nplatform: upgrade to 2.5.1. Exact commands for each OS are on this page.

Is CVE-2025-64121 being exploited?

CVE-2025-64121 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-64121 affect?

CVE-2025-64121 affects nplatform. Severity is critical (CVSS 9.8). 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.

How urgent is CVE-2025-64121?

Priority 48/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-64120 HIGH 8.8 UPGRADE Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in Nu
CVE-2025-64124 HIGH 8.8 UPGRADE Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in Nu
CVE-2025-64123 CRITICAL 9.8 UPGRADE Unintended Proxy or Intermediary vulnerability in Nuvation Energy Multi-Stack Controller (MSC) allows Network
CVE-2025-64122 MEDIUM 5.5 UPGRADE Insufficiently Protected Credentials vulnerability in Nuvation Energy Multi-Stack Controller (MSC) allows Sign

References

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