CVE-2019-10934
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 · uneditedA vulnerability has been identified in TIA Portal V14 (All versions), TIA Portal V15 (All versions < V15.1 Update 7), TIA Portal V16 (All versions < V16 Update 6), TIA Portal V17 (All versions < V17 Update 4). Changing the contents of a configuration file could allow an attacker to execute arbitrary code with SYSTEM privileges. The security vulnerability could be exploited by an attacker with a valid account and limited access rights on the system. No user interaction is required. At the time of advisory publication no public exploitation of this security vulnerability was known.
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 confidenceThis is a local privilege escalation vulnerability in Siemens TIA Portal engineering software where manipulation of configuration files allows an attacker with valid but limited credentials to execute arbitrary code with SYSTEM privileges. The vulnerability requires no user interaction and affects multiple version branches of TIA Portal V14-V17.
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>= 14, <= 17CVSS 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 checksWork through these to decide whether this CVE applies to you.
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Identify TIA Portal installation and versionOpen Windows Control Panel > Programs and Features, or use PowerShell: Get-ItemProperty 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\*' | Where-Object {$_.DisplayName -like '*TIA Portal*'} | Select-Object DisplayName, DisplayVersionAffected if TIA Portal is installed with a version greater than or equal to 14 and less than or equal to 17
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Locate TIA Portal configuration directoriesCheck common installation paths such as C:\Program Files\Siemens\TIA\*\TIA\* or C:\ProgramData\Siemens\TIA* for configuration foldersAffected if Configuration directories exist and are writable by low-privilege users
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Verify filesystem permissions on configuration foldersRight-click configuration folders > Properties > Security tab, or use icacls.exe to review granted permissions for standard users or non-admin accountsAffected if Users with limited privileges (non-admin) have write or modify permissions to TIA Portal configuration directories
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Inspect configuration files for unauthorized modificationsReview XML or other config files in TIA Portal directories for unexpected entries, new scripts, or altered paths, comparing against known-good baselines if availableAffected if Configuration files contain modifications that introduce arbitrary code execution paths or reference unexpected executables
A system is affected if TIA Portal V14 through V17 is installed AND low-privilege users have write access to configuration directories where modifications could elevate to SYSTEM privileges.
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 dataApply vendor patches: upgrade to V15.1 Update 7+, V16 Update 6+, or V17 Update 4+. Additionally, restrict filesystem permissions on TIA Portal configuration directories to prevent unauthorized modification by low-privilege accounts.
- Consultation4.0 h
- Implementation8.0 h
- Testing8.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-10934 — 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-2019-10934 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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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.
- 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