dbcve.org
Data Domain Operating SystemOperating system · Dell

CVE-2026-35154

MEDIUM · 6.7 CVSS v3.1 Published 2026-04-20
Fix available
A fix is available. Upgrade to 7.13.1.70 / 8.3.1.30 or later.
See remediation →
69/100
Remediation priority · Elevated
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 PowerProtect Data Domain Feature Release versions 7.7.1.0 through 8.6.0.0 and version 8.7.0.0, LTS2025 release versions 8.3.1.0 through 8.3.1.20, and LTS2024 release versions 7.13.1.0 through 7.13.1.60 contain an improper privilege management vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading to elevation of privileges to access unauthorized delete operation.

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 PowerProtect Data Domain appliances contain an improper privilege management vulnerability where a high-privileged local attacker can escalate privileges to perform unauthorized delete operations. This is a local privilege escalation flaw affecting versions 7.7.1.0 through 8.7.0.0 and LTS releases.

MitigationApply the vendor-supplied patch for Dell PowerProtect Data Domain to remediate the privilege management vulnerability; restrict local access to trusted administrators and follow least-privilege principles.

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
Data Domain Operating SystemOperating system
Affected:>= 7.13.1.0, < 7.13.1.70>= 8.3.0.0, < 8.3.1.30>= 8.4.0.0, < 8.6.1.0

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
High
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:H/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. Identify Dell Data Domain OS version
    Access the Data Domain CLI and run the command to display the system version, such as 'version' or 'system show version', or check via the management interface under the system information section
    Affected if The displayed version falls within one of these ranges: 7.13.1.0 to 7.13.1.69, 8.3.0.0 to 8.3.1.29, or 8.4.0.0 to 8.6.0.9
  2. Confirm the product is Data Domain Operating System
    Verify that the system is running Dell Data Domain Operating System (DDOS) and not another Dell product, as this vulnerability is specific to the Data Domain appliance line
    Affected if The system is running Dell Data Domain Operating System
  3. Determine if local user access exists
    Check if local user accounts with high privileges exist on the system by reviewing user management settings or authentication configuration
    Affected if Local authenticated users with elevated privileges exist on the appliance

A system is affected if it runs Dell Data Domain Operating System version 7.13.1.0 through 7.13.1.69, 8.3.0.0 through 8.3.1.29, or 8.4.0.0 through 8.6.0.9 and has local user accounts with elevated privileges present.

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 7.13.1.70 / 8.3.1.30 / 8.6.1.0 or later
Fixed in 7.13.1.708.3.1.308.6.1.0
Interim mitigation

Apply the vendor-supplied patch for Dell PowerProtect Data Domain to remediate the privilege management vulnerability; restrict local access to trusted administrators and follow least-privilege principles.

Recommended fix Moderate confidence

7.13.1.70 or later for LTS2024; 8.3.1.30 or later for LTS2025; 8.6.1.0 or later for 8.4.x/8.5.x releases

  1. 1. Identify the current Data Domain Operating System version by running 'system show version' or checking the management console
  2. 2. Based on the current version line, plan upgrade to the minimum fixed version: For 7.13.x line upgrade to 7.13.1.70 or later; For 8.3.x line upgrade to 8.3.1.30 or later; For 8.4.x/8.5.x line upgrade to 8.6.1.0 or later
  3. 3. Back up all critical data and configuration settings before initiating the upgrade
  4. 4. Schedule a maintenance window as upgrades require system downtime
  5. 5. Download the appropriate upgrade package from Dell Support (support.dell.com) for the PowerProtect Data Domain model
  6. 6. Follow Dell's standard upgrade procedure: upload the upgrade file via the management interface or CLI, then execute 'software upload' and 'software activate' commands
  7. 7. Verify the upgrade completed successfully by checking the version with 'system show version'
  8. 8. Confirm the vulnerability is remediated by ensuring the running version meets or exceeds the fixed versions listed
Caveat Standard Data Domain upgrade may require downtime and should be tested in non-production environment first; verify compatibility with existing backup software integrations

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

Fix this in Data Domain Operating System Scoped from the published advisory
  • Consultation4.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA2.0 h
12.0 hours of engineering $2,180
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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-2026-35154 in production — separate from our analysis above.

No notes yet

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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