CVE-2024-57426
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 · uneditedNetMod VPN Client 5.3.1 is vulnerable to DLL injection, allowing an attacker to execute arbitrary code by placing a malicious DLL in a directory where the application loads dependencies. This vulnerability arises due to the improper validation of dynamically loaded libraries.
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 confidenceNetMod VPN Client 5.3.1 is vulnerable to DLL hijacking due to improper validation of dynamically loaded libraries. An attacker can place a malicious DLL in a directory that the application searches when loading dependencies (such as the application directory or a directory in the system PATH), causing the client to load and execute arbitrary code upon application startup.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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 checksWork through these to decide whether this CVE applies to you.
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Identify NetMod VPN Client installation and versionCheck for NetMod VPN Client in program directories (typically C:\Program Files\NetMod or C:\Program Files (x86)\NetMod) and locate the main executable (usually vpnclient.exe or similar). Right-click the executable, select Properties, and check the Version tab for the product version.Affected if The installed version is 5.3.1
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Examine the application directory for extra DLL filesList all DLL files in the NetMod VPN Client installation directory. Compare against known legitimate DLLs that ship with the application (the application should only load DLLs that came with the software).Affected if Unexpected or additional DLL files exist in the application directory that were not part of the original installation
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Check PATH directories for potential DLL planting locationsReview the system PATH environment variable and the application directory. Identify any directories that are writable by standard users or could be manipulated by an attacker to place a malicious DLL.Affected if The application directory or any directory in the system PATH is writable by non-admin users or accessible to untrusted actors
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Verify DLL search order behaviorObserve the application startup behavior using process monitoring tools (such as Process Monitor from Sysinternals) to see which DLL files the application attempts to load and from which paths.Affected if The application loads DLLs from the application directory or PATH directories without validating the DLL signature or path
A user is affected if NetMod VPN Client version 5.3.1 is installed and the application loads DLLs from directories that could be controlled or modified by an attacker.
Generated from the published advisory. Verify against your own configuration.
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 dataImplement secure DLL loading by specifying full absolute paths for all DLL dependencies, removing unsafe DLL search paths, and/or implementing DLL integrity verification (e.g., checksums or signatures). The vendor should release a patch addressing the improper library validation.
- Consultation2.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-57426 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2024-57426 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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