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Telecontrol Server BasicApplication · Siemens

CVE-2025-31352

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 'UpdateGateways' 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. (ZDI-CAN-25915)

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 UpdateGateways method (versions < V3.1.2.2) allows authenticated remote attackers to bypass authorization, read/write the application's database, and execute code with NT AUTHORITY\NetworkService privileges via port 8000.

MitigationUpgrade TeleControl Server Basic to version V3.1.2.2 or later to remediate this vulnerability; alternatively, restrict network access to port 8000 until patching can be completed.

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 version
    Locate the TeleControl Server Basic installation directory and check the version information file, typically found in the program's main folder or via the application's 'About' or 'Help' section within the software interface
    Affected if the installed version is earlier than V3.1.2.2
  2. Verify port 8000 is listening
    Run 'netstat -an | findstr :8000' or use a port scanner to confirm TeleControl Server Basic is listening on TCP port 8000
    Affected if port 8000 is open and accepting connections
  3. Confirm UpdateGateways endpoint accessibility
    If you have access to the server, review the application's exposed web services or API endpoints to confirm the UpdateGateways method is accessible via the SOAP or REST interface on port 8000
    Affected if the UpdateGateways method is exposed without additional access controls beyond basic authentication
  4. Check for unauthorized database modifications
    Review the TeleControl Server Basic database (typically stored in the application data folder) for unexpected records, especially in tables related to gateway configuration, user accounts, or system settings
    Affected if unexpected or suspicious entries exist in the application's database

A user is affected if TeleControl Server Basic version is below V3.1.2.2 AND the service is accessible on port 8000, enabling the SQL injection to be exploited.

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 this vulnerability; alternatively, restrict network access to port 8000 until patching can be completed.

Recommended fix High confidence

V3.1.2.2 or later

  1. 1. Identify the current installed version of TeleControl Server Basic by checking the application or system information
  2. 2. Download TeleControl Server Basic version 3.1.2.2 or later from the official Siemens download portal (cert-portal.siemens.com)
  3. 3. Review the Siemens installation/upgrade documentation before proceeding
  4. 4. Stop the TeleControl Server Basic service before upgrading
  5. 5. Perform the upgrade following Siemens' standard upgrade procedure for TeleControl Server Basic
  6. 6. Restart the TeleControl Server Basic service after upgrade completion
  7. 7. Verify the application is running and the version shows 3.1.2.2 or later
  8. 8. Confirm the vulnerability is remediated by verifying the UpdateGateways method is no longer susceptible to SQL injection
Caveat Security-focused upgrade; normal upgrade precautions apply (backup configuration before upgrading)

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
  • Implementation2.0 h
  • Testing3.0 h
  • Review / QA1.0 h
8.0 hours of engineering $1,390
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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-2025-31352 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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