dbcve.org
Sinec Security MonitorApplication · Siemens

CVE-2025-40830

MEDIUM · 6.7 CVSS v3.1 Published 2025-12-09
Fix available
A fix is available. Upgrade to 4.10.0 or later.
See remediation →
69/100
Remediation priority · Elevated
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
A vulnerability has been identified in SINEC Security Monitor (All versions < V4.10.0). The affected application does not have proper authorization checks for the file_transfer feature in ssmctl-client command. This could allow an authenticated, lowly privileged local attacker to read or write to any file on server or sensor.

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

SINEC Security Monitor versions before V4.10.0 lack proper authorization checks in the ssmctl-client command's file_transfer feature. This allows an authenticated but low-privilege local attacker to perform unrestricted file read/write operations on the server or sensor filesystem.

MitigationUpgrade SINEC Security Monitor to version V4.10.0 or later which implements proper authorization controls for the file_transfer functionality.

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
Sinec Security MonitorApplication
Affected:< 4.10.0

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

CVSS:3.1/AV:L/AC:L/PR:H/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. Verify SINEC Security Monitor installation
    Locate the SINEC Security Monitor installation directory, typically under C:\Program Files\Siemens\SINEC\ or /opt/siemens/sinec/. Look for the ssmctl-client executable or the main application binaries.
    Affected if SINEC Security Monitor is installed on the system
  2. Determine installed version
    Run 'ssmctl-client --version' or check the application version through the UI. Alternatively, examine version information in the installation directory's manifest or version file.
    Affected if The installed version is any release prior to V4.10.0
  3. Confirm ssmctl-client availability
    Locate the ssmctl-client command-line tool in the installation path (e.g., <install_dir>\bin\ssmctl-client.exe or <install_dir>/bin/ssmctl-client). Verify it is accessible to local users.
    Affected if The ssmctl-client tool exists and is accessible to authenticated local users
  4. Check file_transfer functionality
    Examine ssmctl-client help output or documentation for the file_transfer subcommand. This feature allows read/write operations on server or sensor filesystems.
    Affected if The file_transfer feature is present and operational in the installed version

The environment is affected if SINEC Security Monitor version is below V4.10.0 AND the ssmctl-client tool with file_transfer capability is accessible to authenticated local users, allowing unauthorized file system access.

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 4.10.0 or later
Fixed in 4.10.0
Interim mitigation

Upgrade SINEC Security Monitor to version V4.10.0 or later which implements proper authorization controls for the file_transfer functionality.

Recommended fix High confidence

V4.10.0 or later

  1. 1. Navigate to the Siemens Industry Online Support portal or your designated patch management system.
  2. 2. Locate the SINEC Security Monitor product page.
  3. 3. Download SINEC Security Monitor version 4.10.0 or later.
  4. 4. Review the release notes for version 4.10.0 to understand changes and any prerequisites.
  5. 5. Back up the current SINEC Security Monitor configuration and data.
  6. 6. Stop the SINEC Security Monitor service.
  7. 7. Install version 4.10.0 following the official installation documentation.
  8. 8. Verify the installation was successful and the service starts without errors.
Caveat Review release notes for any configuration or feature changes between your current version and V4.10.0

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

Fix this in Sinec Security Monitor Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
7.0 hours of engineering $1,240
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,984.

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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-2025-40830 in production — separate from our analysis above.

No notes yet

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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