dbcve.org
Qms AutomotiveApplication · Siemens

CVE-2023-40727

HIGH · 7.8 CVSS v3.1 Published 2023-09-12
Fix available
A fix is available. Upgrade to 12.39 or later.
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 QMS Automotive (All versions < V12.39). The QMS.Mobile module of the affected application uses weak outdated application signing mechanism. This could allow an attacker to tamper the application code.

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

The QMS.Mobile module of QMS Automotive uses a weak, outdated application signing mechanism that fails to properly protect the application's code integrity. This vulnerability allows attackers to potentially tamper with the application code by exploiting the weak cryptographic signatures. The issue affects all versions prior to V12.39.

MitigationUpgrade QMS Automotive to version V12.39 or later, which implements a stronger application signing mechanism. After upgrading, verify the application's code integrity to confirm the remediation.

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
Qms AutomotiveApplication
Affected:< 12.39

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. Determine QMS Automotive installed version
    Locate the installed QMS Automotive software and retrieve its version number through the application's About section, installer properties, or system inventory tools
    Affected if version is shown as prior to V12.39 (e.g., V12.38, V12.0, etc.) or version cannot be determined but product is confirmed as QMS Automotive
  2. Confirm QMS.Mobile module presence
    Identify whether the QMS.Mobile module is installed as part of the QMS Automotive deployment
    Affected if QMS.Mobile module is present in the installation
  3. Check application signing configuration
    Examine the application's code integrity or signing configuration if accessible through admin interfaces or configuration files
    Affected if weak or outdated cryptographic signatures are detected in the application signing mechanism

A user is affected if QMS Automotive version is confirmed to be below V12.39 and the QMS.Mobile module is present in their environment.

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
Upgrade available Upgrade to 12.39 or later
Fixed in 12.39
Interim mitigation

Upgrade QMS Automotive to version V12.39 or later, which implements a stronger application signing mechanism. After upgrading, verify the application's code integrity to confirm the remediation.

Fix this in Qms Automotive Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
11.0 hours of engineering $1,930
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,088.

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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-2023-40727 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