Scalance Lpe9403 FirmwareOperating system · Siemens

CVE-2025-40582

HIGH · 7.8 CVSS v3.1 Published 2025-05-13
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
80/100
Remediation priority · High
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 SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (All versions with SINEMA Remote Connect Edge Client installed). Affected devices do not properly sanitize configuration parameters. This could allow a non-privileged local attacker to execute root commands on the device.

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 confidence

SCALANCE LPE9403 devices with SINEMA Remote Connect Edge Client have improper sanitization of configuration parameters. This allows a non-privileged local attacker to inject and execute root-level commands on the device through malformed configuration inputs.

MitigationApply vendor-provided patches when available. Until then, restrict physical and local access to affected devices, monitor for unauthorized access attempts, and consider network segmentation to limit exposure.

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
Scalance Lpe9403 FirmwareOperating system
Affected:all versions

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
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/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. Identify device model
    Access the device web interface, CLI, or check the physical device label to confirm the model is SCALANCE LPE9403
    Affected if Device model is SCALANCE LPE9403
  2. Check firmware version
    Via device web interface under System > Firmware or via CLI command 'show version' or similar, note the installed firmware version
    Affected if Any firmware version is installed on LPE9403 (all versions affected)
  3. Verify SINEMA Remote Connect Edge Client presence
    Check device web interface under Applications or via CLI for installed SINEMA Remote Connect Edge Client packages
    Affected if SINEMA Remote Connect Edge Client is installed or enabled on the device
  4. Inspect configuration parameters
    Examine the SINEMA Remote Connect Edge Client configuration files (typically in /etc/src, /opt/src, or via web UI) for any malformed or unexpected entries in configuration parameters
    Affected if Configuration files contain unexpected characters or malformed parameters that could indicate injection
  5. Check for unauthorized local access
    Review device logs, audit logs, or system logs for commands executed by non-privileged users or suspicious command injection patterns
    Affected if Logs show root-level command execution from non-privileged accounts or unexpected configuration changes

User is affected if they operate a SCALANCE LPE9403 device with SINEMA Remote Connect Edge Client enabled, regardless of firmware version.

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.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply vendor-provided patches when available. Until then, restrict physical and local access to affected devices, monitor for unauthorized access attempts, and consider network segmentation to limit exposure.

Fix this in Scalance Lpe9403 Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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Scan for this in your stack

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dbcve dependency scanner

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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-2025-40582 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