dbcve.org
Unity Operating EnvironmentApplication · Dell

CVE-2025-24383

CRITICAL · 9.1 CVSS v3.1 Published 2025-03-28
Fix available
A fix is available. Upgrade to 5.5.0.0.5.259 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges 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 Unity, version(s) 5.4 and prior, contain(s) an Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability to delete arbitrary files. This vulnerability is considered critical as it can be leveraged to delete critical system files as root. Dell recommends customers to upgrade at the earliest opportunity.

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 · high confidence

Dell Unity storage systems version 5.4 and prior contain an OS command injection vulnerability allowing unauthenticated remote attackers to execute arbitrary OS commands. The flaw enables deletion of any file on the system with root privileges, including critical system files.

MitigationDell recommends upgrading to a newer version of Dell Unity at the earliest opportunity. Given the critical severity (CVSS 9.1) and root-level file deletion capability, this should be treated as an emergency patch.

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
Unity Operating EnvironmentApplication
Affected:< 5.5.0.0.5.259

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
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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. Identify the Dell Unity system
    Check the system model or banner: log into the Unisphere management interface and view the system information page, or run 'nas_server -i' or 'uemcli -nofooter /sys/general show' from the service CLI
    Affected if The system is a Dell Unity storage array
  2. Determine the installed firmware version
    In Unisphere, navigate to Settings > Support > System Information to view the OS/Array firmware version, or run 'uemcli -nofooter /sys/general show' to retrieve the 'Installation Version' or 'Version' field
    Affected if The displayed version is 5.4.x or lower, or any version prior to 5.5.0.0.5.259
  3. Confirm version is within affected range
    Compare the installed version string to the affected range: any version less than 5.5.0.0.5.259 (such as 5.4.x, 5.3.x, 5.2.x, 5.1.x, 5.0.x) is vulnerable
    Affected if The installed version is < 5.5.0.0.5.259 (for example: 5.4.0.0.5.147, 5.3.1.0.5.200, etc.)
  4. Check network exposure of Unisphere service
    From an external management network, verify if TCP ports 443 (Unisphere HTTPS) or 80 (Unisphere HTTP) are accessible from untrusted networks using 'nmap -p 80,443 <Unity-MGT-IP>' or by reviewing firewall rules
    Affected if The Unisphere management interface is reachable from untrusted network segments

If the system is a Dell Unity with firmware version less than 5.5.0.0.5.259 and the management interface is network-accessible, the environment is affected by CVE-2025-24383 and allows unauthenticated remote command execution with root privileges.

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 5.5.0.0.5.259 or later
Fixed in 5.5.0.0.5.259
Interim mitigation

Dell recommends upgrading to a newer version of Dell Unity at the earliest opportunity. Given the critical severity (CVSS 9.1) and root-level file deletion capability, this should be treated as an emergency patch.

Recommended fix High confidence

5.5.0.0.5.259 (Unity Operating Environment version 5.5 or later)

  1. 1. Review Dell Unity upgrade documentation and release notes for version 5.5.0.0.5.259
  2. 2. Schedule a maintenance window suitable for a system upgrade
  3. 3. Perform a complete backup of all critical data and configurations
  4. 4. Verify system meets all prerequisites for the 5.5.0.0.5.259 upgrade
  5. 5. Download the Unity Operating Environment upgrade package from Dell support portal
  6. 6. Follow Dell-provided upgrade procedure to install version 5.5.0.0.5.259 or later
  7. 7. Verify successful installation and confirm the new version number
  8. 8. Test critical system functions post-upgrade to ensure operational integrity
Caveat Major version upgrade from 5.4.x to 5.5.x may introduce compatibility changes; review Dell release notes for breaking changes and ensure application compatibility before upgrading

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

Fix this in Unity Operating Environment Scoped from the published advisory
  • Consultation8.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA4.0 h
24.0 hours of engineering $4,360
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,976.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2025-24383 — 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-2025-24383 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