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Telecontrol Server BasicApplication · Siemens

CVE-2025-32834

HIGH · 8.8 CVSS v3.1 Published 2025-04-16
Fix available
A fix is available. Upgrade to 3.1.2.2 or later.
See remediation →
94/100
Remediation priority · Urgent
Remotely reachable 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 TeleControl Server Basic (All versions < V3.1.2.2). The affected application is vulnerable to SQL injection through the internally used 'UpdateConnectionVariablesWithImport' method. This could allow an authenticated remote attacker to bypass authorization controls, to read from and write to the application's database and execute code with "NT AUTHORITY\NetworkService" permissions. A successful attack requires the attacker to be able to access port 8000 on a system where a vulnerable version of the affected application is executed on.

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

SQL injection vulnerability in TeleControl Server Basic's 'UpdateConnectionVariablesWithImport' method allows authenticated remote attackers to bypass authorization, read/write the database, and execute code with NT AUTHORITY\NetworkService privileges. Exploitation requires network access to port 8000.

MitigationUpgrade TeleControl Server Basic to version V3.1.2.2 or later to remediate the SQL injection vulnerability. Restrict network access to port 8000 as a compensating control until the patch is applied.

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
Telecontrol Server BasicApplication
Affected:< 3.1.2.2

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
Network
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/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 TeleControl Server Basic installation
    Check for TeleControl Server Basic installation on the system. Look in standard installation directories or use system inventory tools to find this product.
    Affected if The product is installed and version is below 3.1.2.2
  2. Determine installed version
    Access the TeleControl Server Basic application or check the installed software version through the system registry or program files directory.
    Affected if Installed version is lower than 3.1.2.2
  3. Verify port 8000 is exposed
    Check if port 8000 is open and listening on the server using netstat or port scanning tools (e.g., 'netstat -an | grep 8000' or remote port scan).
    Affected if Port 8000 is accessible from untrusted network segments
  4. Assess remote access authentication
    Review whether remote authentication is enabled and accessible to untrusted users or network segments.
    Affected if Remote authentication is enabled and accessible from untrusted sources

Environment is affected if TeleControl Server Basic is installed with version below 3.1.2.2 and port 8000 is accessible from untrusted networks with authentication enabled.

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 3.1.2.2 or later
Fixed in 3.1.2.2
Interim mitigation

Upgrade TeleControl Server Basic to version V3.1.2.2 or later to remediate the SQL injection vulnerability. Restrict network access to port 8000 as a compensating control until the patch is applied.

Recommended fix High confidence

V3.1.2.2

  1. Identify the current version of TeleControl Server Basic installed on the system
  2. Back up the TeleControl Server Basic application and its database before proceeding with the upgrade
  3. Obtain the fixed version V3.1.2.2 from the official Siemens download portal or through your existing Siemens support channel
  4. Upgrade the TeleControl Server Basic installation to version V3.1.2.2 following the official Siemens upgrade documentation
  5. Verify the upgrade was successful by confirming the installed version is V3.1.2.2 or higher
  6. Test that the application functions normally after the upgrade
  7. Ensure port 8000 is still accessible only to authorized users as an additional defense-in-depth measure
Caveat Standard upgrade considerations apply - review Siemens release notes for any configuration or behavioral changes in V3.1.2.2

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

Fix this in Telecontrol Server Basic Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing4.0 h
  • Review / QA2.0 h
12.0 hours of engineering $2,080
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,328.

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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-2025-32834 in production — separate from our analysis above.

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What this is

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What belongs here
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  • Version or environment caveats, and links to real fixes
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