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NetextenderApplication · Sonicwall

CVE-2024-29014

HIGH · 8.8 CVSS v3.1 Published 2024-07-18
Fix available
A fix is available. Upgrade to 10.2.341 or later.
See remediation →
94/100
Remediation priority · Urgent
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
Vulnerability in SonicWall SMA100 NetExtender Windows (32 and 64-bit) client 10.2.339 and earlier versions allows an attacker to arbitrary code execution when processing an EPC Client update.

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

Vulnerability in SonicWall SMA100 NetExtender Windows client (32 and 64-bit) versions 10.2.339 and earlier allows arbitrary code execution during EPC Client update processing, likely due to insufficient validation of update files or the update mechanism itself.

MitigationUpdate NetExtender Windows client to a version newer than 10.2.339 that addresses this vulnerability, and verify that EPC Client updates are only processed from trusted sources.

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
NetextenderApplication
Affected:< 10.2.341

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

CVSS:3.1/AV:N/AC:L/PR:L/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. Locate NetExtender client installation
    Check Program Files (or Program Files x86) for 'NetExtender' folder, or search for 'netextender.exe' on the system. Common paths: C:\Program Files\SonicWall\NetExtender\ or C:\Program Files (x86)\SonicWall\NetExtender\
    Affected if NetExtender client is installed on the Windows system
  2. Identify installed NetExtender version
    Right-click netextender.exe, select Properties, then check the Details tab for Product Version. Alternatively, open PowerShell and run: (Get-Item 'C:\Program Files\SonicWall\NetExtender\netextender.exe').VersionInfo.ProductVersion (adjust path if different)
    Affected if The reported version is 10.2.339 or lower, or any version prior to 10.2.341
  3. Check if EPC Client feature is configured
    Open NetExtender client, go to Settings or Options, and look for EPC (Exchange Protection Client) or Secure Remote Access settings. Check if EPC-related profiles or connections are defined in the client configuration.
    Affected if EPC Client update functionality is enabled or EPC connections are configured in NetExtender
  4. Verify EPC update mechanism settings
    Inspect NetExtender configuration files in the installation directory for entries related to 'EPC', 'update', or 'autoupdate'. Check Windows Registry under HKLM\SOFTWARE\SonicWall\NetExtender or HKCU\SOFTWARE\SonicWall\NetExtender for EPC-related keys.
    Affected if Automatic EPC Client updates are configured or the system uses EPC functionality that triggers update checks

The system is affected if NetExtender version 10.2.339 or earlier is installed AND the EPC Client update feature is enabled or used for Exchange Protection connections.

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 10.2.341 or later
Fixed in 10.2.341
Interim mitigation

Update NetExtender Windows client to a version newer than 10.2.339 that addresses this vulnerability, and verify that EPC Client updates are only processed from trusted sources.

Recommended fix High confidence

10.2.341 or later

  1. 1. Download the latest NetExtender client version 10.2.341 or later from the official SonicWall support portal at psirt.global.sonicwall.com
  2. 2. Uninstall the current NetExtender Windows client (32-bit or 64-bit depending on your installation)
  3. 3. Clear any temporary files or caches related to the previous NetExtender installation
  4. 4. Install the updated NetExtender client version 10.2.341 or later
  5. 5. Verify the installed version by checking Help > About in the NetExtender client
  6. 6. Test the VPN connection to ensure the update does not affect functionality

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

Fix this in Netextender Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,060
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,696.

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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-2024-29014 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