CVE-2026-6348
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 · uneditedWinMatrix agent developed by Simopro Technology has a Missing Authentication vulnerability, allowing authenticated local attackers to execute arbitrary code with SYSTEM privileges on the local machine as well as on all hosts within the environment where the agent is installed.
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 confidenceThe WinMatrix agent by Simopro Technology lacks proper authentication controls, allowing any authenticated local user to escalate privileges to SYSTEM level and execute arbitrary code. This vulnerability propagates across all hosts in the environment where the agent is deployed.
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
- Low
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/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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Identify if WinMatrix agent is installedCheck for WinMatrix agent software on the system. Look for Simopro Technology WinMatrix in installed programs (Windows: Add/Remove Programs, registry HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall, or scan for winmatrix.exe process)Affected if WinMatrix agent by Simopro Technology is present on the system
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Verify the WinMatrix service is runningCheck if the WinMatrix service is running as a system service. Use 'sc query WinMatrix' or Task Manager to see if the service executable is activeAffected if WinMatrix service is currently running on the host
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Confirm local user access existsVerify that local user accounts exist on the system. Run 'net user' or check Security account manager for local usersAffected if Any authenticated local user account exists on the system (this is the baseline requirement for exploitation)
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Check service executable permissionsExamine file system permissions on the WinMatrix installation directory and executable. Use icacls or check if non-privileged users can modify the service binary or configuration filesAffected if Authenticated local users have write access to WinMatrix binaries or configuration, allowing privilege escalation
A host is affected if the WinMatrix agent is installed and any authenticated local user account exists, since the vulnerability allows any such user to escalate to SYSTEM privileges through the unauthenticated agent interface.
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 strong authentication and authorization checks for all privileged operations in the WinMatrix agent, enforce least-privilege principles, and restrict SYSTEM-level access to only necessary, validated operations.
- Consultation8.0 h
- Implementation24.0 h
- Testing16.0 h
- Review / QA8.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-6348 — 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-2026-6348 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
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