dbcve.org
Data Domain Operating SystemOperating system · Dell

CVE-2026-46465

MEDIUM · 5.5 CVSS v3.1 Published 2026-07-03
Fix available
A fix is available. Upgrade to after 8.7.0.0 or later.
See remediation →
61/100
Remediation priority · Elevated
Remotely reachable Zero-click 7 weeks old

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, versions 7.7.1.0 through 8.7, LTS2026 release version 8.6.1.0 through 8.6.1.10, LTS2025 release version 8.3.1.0 through 8.3.1.30, LTS2024 release versions 7.13.1.0 through 7.13.1.70 contain an use of externally-controlled format string vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Information disclosure and denial of service.

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 contains a format string vulnerability where user-controlled input is used as a format string in printf-style functions without proper sanitization. A high-privileged authenticated attacker with remote access can exploit this to read memory contents (information disclosure) or crash the service (denial of service).

MitigationApply vendor-provided patches for the affected versions (7.7.1.0-8.7, LTS2024-LTS2026 releases). If no patch available, audit code for format string functions using untrusted input and replace with secure alternatives (e.g., printf("%s", user_input) instead of printf(user_input)).

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:>= 7.7.1.0, <= 7.13.1.70>= 8.0.0.0, <= 8.3.1.30>= 8.4.0.0, <= 8.7.0.0

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
Low
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/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 Data Domain system
    Identify if the target system is a Dell PowerProtect Data Domain appliance. Check the system hostname, firmware branding, or access the management interface to verify the product. The system runs Dell Data Domain Operating System (DDOS).
    Affected if System is not a Dell Data Domain or PowerProtect appliance - not affected by this CVE.
  2. Retrieve installed DDOS version
    Log into the Data Domain management CLI (via console, SSH, or GUI) and run the command 'version' or 'system show version' to display the installed Data Domain Operating System version. Alternatively, check the GUI System > Overview page for the OS version.
    Affected if Unable to determine the DDOS version - cannot assess vulnerability status.
  3. Compare version against affected ranges
    Compare the installed DDOS version number to the affected ranges: 7.7.1.0 through 7.13.1.70, 8.0.0.0 through 8.3.1.30, or 8.4.0.0 through 8.7.0.0. Note that versions outside these ranges or between these ranges (e.g., 7.14.x, 8.8.x) are not listed as affected.
    Affected if Installed version falls within 7.7.1.0-7.13.1.70, 8.0.0.0-8.3.1.30, or 8.4.0.0-8.7.0.0 - potentially affected.
  4. Check for remote management access
    Review whether the Data Domain management interfaces (CLI/SSH, GUI, or API) are exposed to the network. Verify access controls, firewall rules, and authentication settings for remote administrative access. The vulnerability requires a high-privileged authenticated attacker with remote access.
    Affected if Remote management interfaces are disabled or restricted to trusted networks - the attack surface is reduced but the code flaw may still exist in the affected version.
  5. Verify privileged user access
    Audit accounts with administrative or privileged access to the Data Domain system. The vulnerability requires a high-privileged authenticated attacker. Review user accounts, LDAP/AD integration, and admin role assignments.
    Affected if No high-privileged accounts exist or all privileged access is properly secured - unlikely to be exploitable even with the vulnerable version present.

The system is affected if it is a Dell Data Domain/PowerProtect appliance running DDOS version 7.7.1.0-7.13.1.70, 8.0.0.0-8.3.1.30, or 8.4.0.0-8.7.0.0 and has remote management access enabled for authenticated users.

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.

From vendor data
Upgrade available Upgrade to a release after 8.7.0.0
Interim mitigation

Apply vendor-provided patches for the affected versions (7.7.1.0-8.7, LTS2024-LTS2026 releases). If no patch available, audit code for format string functions using untrusted input and replace with secure alternatives (e.g., printf("%s", user_input) instead of printf(user_input)).

Fix this in Data Domain Operating System Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA3.0 h
21.0 hours of engineering $3,680
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Scan for this in your stack

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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-2026-46465 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