dbcve.org
Netvault BackupApplication · Dell

CVE-2015-4067

HIGH · 10.0 CVSS v2.0 Published 2015-05-29
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
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
Integer overflow in the libnv6 module in Dell NetVault Backup before 10.0.5 allows remote attackers to execute arbitrary code via crafted template string specifiers in a serialized object, which triggers a heap-based buffer overflow.

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

Integer overflow in the libnv6 module in Dell NetVault Backup before 10.0.5 allows remote attackers to execute arbitrary code via crafted template string specifiers in a serialized object, triggering a heap-based buffer overflow.

MitigationUpgrade to Dell NetVault Backup version 10.0.5 or later to obtain the patched libnv6 module.

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
Netvault BackupApplication
Affected:= 10.0.5

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
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:L/Au:N/C:C/I:C/A:C

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 NetVault Backup installation
    Locate the NetVault Backup installation directory and identify the binary or service name (typically nv.exe or similar). Check the program's version through its About dialog, installer logs, or by running 'nvtk_mgtsv -version' if available.
    Affected if Dell NetVault Backup is not installed or the version cannot be determined.
  2. Check installed NetVault Backup version
    Retrieve the exact version number of the installed Dell NetVault Backup instance. This may be found in the program's main executable properties, registry keys under HKLM\Software\Dell\NetVault Backup, or by querying the installed packages on the system.
    Affected if The installed version is lower than 10.0.5 (e.g., 10.0.0 through 10.0.4).
  3. Verify libnv6 module presence
    Locate the libnv6 library file within the NetVault Backup installation directory, typically found in the bin or lib subfolder. The module is required for the vulnerability to be exploitable.
    Affected if The libnv6 module exists and the NetVault Backup version is before 10.0.5.
  4. Identify exposed network service
    Determine if the NetVault Backup service is listening on network ports (default TCP ports 20031, 20032, or similar). The vulnerability is exploitable remotely via crafted serialized objects.
    Affected if NetVault Backup is running as a network service and accepts serialized object input.

The environment is affected if Dell NetVault Backup with a version lower than 10.0.5 is installed and the libnv6 module is present and accessible.

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
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Upgrade to Dell NetVault Backup version 10.0.5 or later to obtain the patched libnv6 module.

Recommended fix High confidence

Dell NetVault Backup 10.0.5 or later

  1. 1. Identify the current installed version of Dell NetVault Backup by checking the application or using system inventory tools.
  2. 2. If the installed version is earlier than 10.0.5, download Dell NetVault Backup version 10.0.5 or a later stable release from Dell's official support portal.
  3. 3. Before applying the upgrade, perform a full backup of the NetVault Backup configuration and database to ensure data can be restored if issues occur.
  4. 4. Schedule the upgrade during a maintenance window to minimize disruption to backup operations.
  5. 5. Apply the upgrade following Dell's standard installation procedures for NetVault Backup.
  6. 6. After upgrade, verify the libnv6 module loads correctly and the service starts without errors.
  7. 7. Test a backup job to confirm normal operations are restored.
Caveat Review Dell release notes for version 10.0.5 for any configuration changes or deprecated features that may affect existing backup jobs

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

Fix this in Netvault Backup Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing5.0 h
  • Review / QA3.0 h
17.0 hours of engineering $2,970
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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-2015-4067 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
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