CVE-2026-56437
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 · uneditedUncontrolled search path element issue exists in Pupsman versions prior to 3.9.0. If a crafted DLL file is placed in the same folder as the affected installer and the installer is executed, arbitrary code may be executed with SYSTEM privilege.
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 confidenceThis is a DLL hijacking vulnerability (uncontrolled search path element) in Pupsman installer versions prior to 3.9.0. When the installer executes, it loads DLLs from its working directory before checking system paths. An attacker with local access can place a malicious DLL with the same name as a legitimate DLL in the installer folder, achieving arbitrary code execution with SYSTEM privileges since the installer runs elevated.
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
- Local
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/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 checksWork through these to decide whether this CVE applies to you.
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Locate Pupsman installer on the systemSearch for pupsinstall.exe, pupsetup.exe, or similar Pupsman installer executable files in common installation directories (C:\Program Files\Pupsman, C:\Program Files (x86)\Pupsman) and user download foldersAffected if Pupsman installer executable is found on the system
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Identify the installed Pupsman versionRight-click the installer executable, select Properties, and check the Details tab for the Product Version field. Alternatively, run 'pupsman_installer.exe /?' or check any version information displayed during installationAffected if Version displayed is lower than 3.9.0 or no version is shown (implying an older release)
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Verify the installer is run from an unsecured directoryCheck if the installer is typically run from user-writable locations such as Downloads folders, desktop, or temp directories rather than a read-only network share or secure folderAffected if Installer is executed from a user-writable directory where an attacker could place a malicious DLL with a name matching a legitimate DLL the installer loads
A system is affected if the Pupsman installer version is below 3.9.0 and the installer can be run from or is stored in a directory where an untrusted user could place a malicious DLL file.
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.
dbcve · scopedUpdate Pupsman to version 3.9.0 or later. As a workaround, ensure the installer is run from a secure, read-only directory and verify no untrusted DLLs are present in the installer folder before execution.
3.9.0
- Obtain Pupsman version 3.9.0 or later from the official vendor (Fuji Electric)
- Download the installer from the official source at www.fujielectric.co.jp
- Verify the integrity of the downloaded installer file before execution
- Execute the updated installer to apply the fix
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,696.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-56437 — 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-2026-56437 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