dbcve.org
Powerscale OnefsOperating system · Dell

CVE-2026-21425

HIGH · 7.8 CVSS v3.1 Published 2026-03-04
Fix available
A fix is available. Upgrade to 9.10.1.6 / 9.13.0.0 or later.
See remediation →
80/100
Remediation priority · High
Zero-click

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 · unedited
Dell PowerScale OneFS, versions prior to 9.10.1.6 and versions 9.11.0.0 through 9.12.0.1, contains an incorrect privilege assignment vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Elevation of privileges.

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 confidence

Dell PowerScale OneFS contains an incorrect privilege assignment vulnerability that allows a low-privileged local attacker to escalate privileges to a higher permission level. The vulnerability affects versions prior to 9.10.1.6 and versions 9.11.0.0 through 9.12.0.1, and stems from improper privilege configuration in the operating system.

MitigationApply the vendor patch by upgrading Dell PowerScale OneFS to version 9.10.1.6 or later (or a later supported version).

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Powerscale OnefsOperating system
Affected:< 9.10.1.6>= 9.11.0.0, < 9.13.0.0

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
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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 checks

Work through these to decide whether this CVE applies to you.

  1. Confirm Dell PowerScale OneFS is installed
    Identify whether the target system is running Dell PowerScale OneFS. This is typically done through system documentation, the WebUI login page, or by checking the operating system characteristics.
    Affected if The system is not running Dell PowerScale OneFS, then this CVE does not apply.
  2. Determine the installed OneFS version
    Retrieve the currently installed OneFS version through the CLI command 'isi version' or through the WebUI by navigating to the About or System Information page.
    Affected if Unable to determine the version, proceed with caution.
  3. Compare version against the first affected range
    Check if the installed version is any release prior to 9.10.1.6. This includes versions 9.10.x, 9.9.x, 9.8.x, and earlier.
    Affected if The installed version is less than 9.10.1.6, then the system is affected.
  4. Compare version against the second affected range
    Check if the installed version falls within 9.11.0.0 through 9.12.0.1 inclusive. This means any version from 9.11.0.0 up to and including 9.12.0.1.
    Affected if The installed version is >= 9.11.0.0 and <= 9.12.0.1, then the system is affected.
  5. Verify the system is not in a safe version range
    Confirm the version is NOT 9.10.1.6 or later, AND NOT 9.13.0.0 or later. Versions 9.10.1.6 through 9.12.0.2 (if existed) and 9.13.0.0+ are not affected.
    Affected if The installed version is 9.10.1.6 or later, OR 9.13.0.0 or later, then the system is not affected by this CVE.

The environment is affected if the installed Dell PowerScale OneFS version is either below 9.10.1.6, or falls between 9.11.0.0 and 9.12.0.1 inclusive.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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.

dbcve · scoped
Upgrade available Upgrade to 9.10.1.6 / 9.13.0.0 or later
Fixed in 9.10.1.69.13.0.0
Interim mitigation

Apply the vendor patch by upgrading Dell PowerScale OneFS to version 9.10.1.6 or later (or a later supported version).

Recommended fix High confidence

OneFS 9.13.0.0 or later (9.10.1.6+ for 9.10.x branch)

  1. 1. Back up all critical data and configurations on the PowerScale cluster
  2. 2. Review Dell PowerScale OneFS upgrade documentation and release notes for version 9.13.0.0
  3. 3. Schedule a maintenance window appropriate for the upgrade
  4. 4. Download the OneFS 9.13.0.0 (or latest stable) ISO/image from Dell Support portal
  5. 5. Initiate OneFS upgrade via the WebUI (Platform API) or CLI using the 'isi upgrade' command
  6. 6. Monitor the upgrade process for completion
  7. 7. After upgrade, verify the OneFS version is 9.13.0.0 or later using 'isi version'
  8. 8. Validate that affected services and configurations are functioning correctly
Caveat Review Dell compatibility matrix and release notes for any protocol deprecations, API changes, or migration considerations before upgrading

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Powerscale Onefs Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing12.0 h
  • Review / QA4.0 h
28.0 hours of engineering $4,760
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,616.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2026-21425 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

Get it on GitHub Scan in the browser

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-21425 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • 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
  • No spam, self-promotion, credentials, or personal data