dbcve.org
Data Domain Operating SystemOperating system · Dell

CVE-2025-46605

HIGH · 7.2 CVSS v3.1 Published 2026-04-17
Fix available
A fix is available. Upgrade to 8.6.0.0 or later.
See remediation →
78/100
Remediation priority · High
Remotely reachable 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 with Data Domain Operating System (DD OS) of Feature Release versions 8.4 through 8.5 contain a session fixation vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to unauthorized access.

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 running DD OS versions 8.4 through 8.5 contains a session fixation vulnerability. An authenticated, high-privileged attacker with remote access can potentially exploit this by fixing or predetermining a user's session ID before authentication, then hijacking the legitimate session after login to gain unauthorized access to the system.

MitigationApply the vendor-supplied patch or update to DD OS to address the session fixation vulnerability. Contact Dell support for the specific fix and ensure session IDs are regenerated upon successful authentication.

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:>= 8.4.0.0, < 8.6.0.0

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

CVSS:3.1/AV:N/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. Determine the installed DD OS version
    Access the Data Domain CLI or admin UI and retrieve the operating system version (typically via 'version' command or system information screen in the management interface)
    Affected if The installed version is 8.4.0.0 or higher but less than 8.6.0.0, placing it within the affected range
  2. Verify remote administrative access is enabled
    Review network configuration settings to confirm whether remote access protocols (SSH, HTTPS admin interface) are enabled and accessible from network segments where attackers could operate
    Affected if Remote administrative access is enabled, as the vulnerability requires remote network access to exploit session fixation

The environment is affected if the installed DD OS version falls within 8.4.0.0 to 8.5.x.x and the system accepts remote authenticated sessions that could be intercepted or fixed by an attacker.

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 8.6.0.0 or later
Fixed in 8.6.0.0
Interim mitigation

Apply the vendor-supplied patch or update to DD OS to address the session fixation vulnerability. Contact Dell support for the specific fix and ensure session IDs are regenerated upon successful authentication.

Recommended fix High confidence

DD OS 8.6.0.0 or later (any Feature Release version beyond 8.5.x)

  1. 1. Identify the current Data Domain Operating System (DD OS) version by running 'system show version' or checking the management console.
  2. 2. Confirm the version is between 8.4.0.0 and 8.5.x (inclusive), which is affected by CVE-2025-46605.
  3. 3. Schedule a maintenance window for the upgrade, as DD OS upgrades typically require system downtime.
  4. 4. Backup the current DD OS configuration using the 'config export' command or through the management interface.
  5. 5. Download DD OS version 8.6.0.0 or later from Dell Support (support.dell.com) - ensure compatibility with your specific Data Domain model.
  6. 6. Upload the DD OS upgrade software to the Data Domain system using 'software upload' or the management console.
  7. 7. Install the upgrade using 'software install' command or through the GUI, following Dell's standard upgrade procedure.
  8. 8. After installation, reboot the system if required and verify the new version with 'system show version'.
Caveat Data Domain OS upgrades typically require scheduled downtime and may have compatibility requirements with connected backup applications; verify compatibility matrices before upgrading.

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
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
15.0 hours of engineering $2,690
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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-2025-46605 in production — separate from our analysis above.

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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